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-[[def_alternate_object_database]]alternate object database::
-	Via the alternates mechanism, a <<def_repository,repository>>
-	can inherit part of its <<def_object_database,object database>>
-	from another object database, which is called an "alternate".
-
-[[def_bare_repository]]bare repository::
-	A bare repository is normally an appropriately
-	named <<def_directory,directory>> with a `.git` suffix that does not
-	have a locally checked-out copy of any of the files under
-	revision control. That is, all of the Git
-	administrative and control files that would normally be present in the
-	hidden `.git` sub-directory are directly present in the
-	`repository.git` directory instead,
-	and no other files are present and checked out. Usually publishers of
-	public repositories make bare repositories available.
-
-[[def_blob_object]]blob object::
-	Untyped <<def_object,object>>, e.g. the contents of a file.
-
-[[def_branch]]branch::
-	A "branch" is an active line of development.  The most recent
-	<<def_commit,commit>> on a branch is referred to as the tip of
-	that branch.  The tip of the branch is referenced by a branch
-	<<def_head,head>>, which moves forward as additional development
-	is done on the branch.  A single Git
-	<<def_repository,repository>> can track an arbitrary number of
-	branches, but your <<def_working_tree,working tree>> is
-	associated with just one of them (the "current" or "checked out"
-	branch), and <<def_HEAD,HEAD>> points to that branch.
-
-[[def_cache]]cache::
-	Obsolete for: <<def_index,index>>.
-
-[[def_chain]]chain::
-	A list of objects, where each <<def_object,object>> in the list contains
-	a reference to its successor (for example, the successor of a
-	<<def_commit,commit>> could be one of its <<def_parent,parents>>).
-
-[[def_changeset]]changeset::
-	BitKeeper/cvsps speak for "<<def_commit,commit>>". Since Git does not
-	store changes, but states, it really does not make sense to use the term
-	"changesets" with Git.
-
-[[def_checkout]]checkout::
-	The action of updating all or part of the
-	<<def_working_tree,working tree>> with a <<def_tree_object,tree object>>
-	or <<def_blob_object,blob>> from the
-	<<def_object_database,object database>>, and updating the
-	<<def_index,index>> and <<def_HEAD,HEAD>> if the whole working tree has
-	been pointed at a new <<def_branch,branch>>.
-
-[[def_cherry-picking]]cherry-picking::
-	In <<def_SCM,SCM>> jargon, "cherry pick" means to choose a subset of
-	changes out of a series of changes (typically commits) and record them
-	as a new series of changes on top of a different codebase. In Git, this is
-	performed by the "git cherry-pick" command to extract the change introduced
-	by an existing <<def_commit,commit>> and to record it based on the tip
-	of the current <<def_branch,branch>> as a new commit.
-
-[[def_clean]]clean::
-	A <<def_working_tree,working tree>> is clean, if it
-	corresponds to the <<def_revision,revision>> referenced by the current
-	<<def_head,head>>. Also see "<<def_dirty,dirty>>".
-
-[[def_commit]]commit::
-	As a noun: A single point in the
-	Git history; the entire history of a project is represented as a
-	set of interrelated commits.  The word "commit" is often
-	used by Git in the same places other revision control systems
-	use the words "revision" or "version".  Also used as a short
-	hand for <<def_commit_object,commit object>>.
-+
-As a verb: The action of storing a new snapshot of the project's
-state in the Git history, by creating a new commit representing the current
-state of the <<def_index,index>> and advancing <<def_HEAD,HEAD>>
-to point at the new commit.
-
-[[def_commit_object]]commit object::
-	An <<def_object,object>> which contains the information about a
-	particular <<def_revision,revision>>, such as <<def_parent,parents>>, committer,
-	author, date and the <<def_tree_object,tree object>> which corresponds
-	to the top <<def_directory,directory>> of the stored
-	revision.
-
-[[def_commit-ish]]commit-ish (also committish)::
-	A <<def_commit_object,commit object>> or an
-	<<def_object,object>> that can be recursively dereferenced to
-	a commit object.
-	The following are all commit-ishes:
-	a commit object,
-	a <<def_tag_object,tag object>> that points to a commit
-	object,
-	a tag object that points to a tag object that points to a
-	commit object,
-	etc.
-
-[[def_core_git]]core Git::
-	Fundamental data structures and utilities of Git. Exposes only limited
-	source code management tools.
-
-[[def_DAG]]DAG::
-	Directed acyclic graph. The <<def_commit_object,commit objects>> form a
-	directed acyclic graph, because they have parents (directed), and the
-	graph of commit objects is acyclic (there is no <<def_chain,chain>>
-	which begins and ends with the same <<def_object,object>>).
-
-[[def_dangling_object]]dangling object::
-	An <<def_unreachable_object,unreachable object>> which is not
-	<<def_reachable,reachable>> even from other unreachable objects; a
-	dangling object has no references to it from any
-	reference or <<def_object,object>> in the <<def_repository,repository>>.
-
-[[def_detached_HEAD]]detached HEAD::
-	Normally the <<def_HEAD,HEAD>> stores the name of a
-	<<def_branch,branch>>, and commands that operate on the
-	history HEAD represents operate on the history leading to the
-	tip of the branch the HEAD points at.  However, Git also
-	allows you to <<def_checkout,check out>> an arbitrary
-	<<def_commit,commit>> that isn't necessarily the tip of any
-	particular branch.  The HEAD in such a state is called
-	"detached".
-+
-Note that commands that operate on the history of the current branch
-(e.g. `git commit` to build a new history on top of it) still work
-while the HEAD is detached. They update the HEAD to point at the tip
-of the updated history without affecting any branch.  Commands that
-update or inquire information _about_ the current branch (e.g. `git
-branch --set-upstream-to` that sets what remote-tracking branch the
-current branch integrates with) obviously do not work, as there is no
-(real) current branch to ask about in this state.
-
-[[def_directory]]directory::
-	The list you get with "ls" :-)
-
-[[def_dirty]]dirty::
-	A <<def_working_tree,working tree>> is said to be "dirty" if
-	it contains modifications which have not been <<def_commit,committed>> to the current
-	<<def_branch,branch>>.
-
-[[def_evil_merge]]evil merge::
-	An evil merge is a <<def_merge,merge>> that introduces changes that
-	do not appear in any <<def_parent,parent>>.
-
-[[def_fast_forward]]fast-forward::
-	A fast-forward is a special type of <<def_merge,merge>> where you have a
-	<<def_revision,revision>> and you are "merging" another
-	<<def_branch,branch>>'s changes that happen to be a descendant of what
-	you have. In such a case, you do not make a new <<def_merge,merge>>
-	<<def_commit,commit>> but instead just update to his
-	revision. This will happen frequently on a
-	<<def_remote_tracking_branch,remote-tracking branch>> of a remote
-	<<def_repository,repository>>.
-
-[[def_fetch]]fetch::
-	Fetching a <<def_branch,branch>> means to get the
-	branch's <<def_head_ref,head ref>> from a remote
-	<<def_repository,repository>>, to find out which objects are
-	missing from the local <<def_object_database,object database>>,
-	and to get them, too.  See also linkgit:git-fetch[1].
-
-[[def_file_system]]file system::
-	Linus Torvalds originally designed Git to be a user space file system,
-	i.e. the infrastructure to hold files and directories. That ensured the
-	efficiency and speed of Git.
-
-[[def_git_archive]]Git archive::
-	Synonym for <<def_repository,repository>> (for arch people).
-
-[[def_gitfile]]gitfile::
-	A plain file `.git` at the root of a working tree that
-	points at the directory that is the real repository.
-
-[[def_grafts]]grafts::
-	Grafts enables two otherwise different lines of development to be joined
-	together by recording fake ancestry information for commits. This way
-	you can make Git pretend the set of <<def_parent,parents>> a <<def_commit,commit>> has
-	is different from what was recorded when the commit was
-	created. Configured via the `.git/info/grafts` file.
-+
-Note that the grafts mechanism is outdated and can lead to problems
-transferring objects between repositories; see linkgit:git-replace[1]
-for a more flexible and robust system to do the same thing.
-
-[[def_hash]]hash::
-	In Git's context, synonym for <<def_object_name,object name>>.
-
-[[def_head]]head::
-	A <<def_ref,named reference>> to the <<def_commit,commit>> at the tip of a
-	<<def_branch,branch>>.  Heads are stored in a file in
-	`$GIT_DIR/refs/heads/` directory, except when using packed refs. (See
-	linkgit:git-pack-refs[1].)
-
-[[def_HEAD]]HEAD::
-	The current <<def_branch,branch>>.  In more detail: Your <<def_working_tree,
-	working tree>> is normally derived from the state of the tree
-	referred to by HEAD.  HEAD is a reference to one of the
-	<<def_head,heads>> in your repository, except when using a
-	<<def_detached_HEAD,detached HEAD>>, in which case it directly
-	references an arbitrary commit.
-
-[[def_head_ref]]head ref::
-	A synonym for <<def_head,head>>.
-
-[[def_hook]]hook::
-	During the normal execution of several Git commands, call-outs are made
-	to optional scripts that allow a developer to add functionality or
-	checking. Typically, the hooks allow for a command to be pre-verified
-	and potentially aborted, and allow for a post-notification after the
-	operation is done. The hook scripts are found in the
-	`$GIT_DIR/hooks/` directory, and are enabled by simply
-	removing the `.sample` suffix from the filename. In earlier versions
-	of Git you had to make them executable.
-
-[[def_index]]index::
-	A collection of files with stat information, whose contents are stored
-	as objects. The index is a stored version of your
-	<<def_working_tree,working tree>>. Truth be told, it can also contain a second, and even
-	a third version of a working tree, which are used
-	when <<def_merge,merging>>.
-
-[[def_index_entry]]index entry::
-	The information regarding a particular file, stored in the
-	<<def_index,index>>. An index entry can be unmerged, if a
-	<<def_merge,merge>> was started, but not yet finished (i.e. if
-	the index contains multiple versions of that file).
-
-[[def_master]]master::
-	The default development <<def_branch,branch>>. Whenever you
-	create a Git <<def_repository,repository>>, a branch named
-	"master" is created, and becomes the active branch. In most
-	cases, this contains the local development, though that is
-	purely by convention and is not required.
-
-[[def_merge]]merge::
-	As a verb: To bring the contents of another
-	<<def_branch,branch>> (possibly from an external
-	<<def_repository,repository>>) into the current branch.  In the
-	case where the merged-in branch is from a different repository,
-	this is done by first <<def_fetch,fetching>> the remote branch
-	and then merging the result into the current branch.  This
-	combination of fetch and merge operations is called a
-	<<def_pull,pull>>.  Merging is performed by an automatic process
-	that identifies changes made since the branches diverged, and
-	then applies all those changes together.  In cases where changes
-	conflict, manual intervention may be required to complete the
-	merge.
-+
-As a noun: unless it is a <<def_fast_forward,fast-forward>>, a
-successful merge results in the creation of a new <<def_commit,commit>>
-representing the result of the merge, and having as
-<<def_parent,parents>> the tips of the merged <<def_branch,branches>>.
-This commit is referred to as a "merge commit", or sometimes just a
-"merge".
-
-[[def_object]]object::
-	The unit of storage in Git. It is uniquely identified by the
-	<<def_SHA1,SHA-1>> of its contents. Consequently, an
-	object cannot be changed.
-
-[[def_object_database]]object database::
-	Stores a set of "objects", and an individual <<def_object,object>> is
-	identified by its <<def_object_name,object name>>. The objects usually
-	live in `$GIT_DIR/objects/`.
-
-[[def_object_identifier]]object identifier::
-	Synonym for <<def_object_name,object name>>.
-
-[[def_object_name]]object name::
-	The unique identifier of an <<def_object,object>>.  The
-	object name is usually represented by a 40 character
-	hexadecimal string.  Also colloquially called <<def_SHA1,SHA-1>>.
-
-[[def_object_type]]object type::
-	One of the identifiers "<<def_commit_object,commit>>",
-	"<<def_tree_object,tree>>", "<<def_tag_object,tag>>" or
-	"<<def_blob_object,blob>>" describing the type of an
-	<<def_object,object>>.
-
-[[def_octopus]]octopus::
-	To <<def_merge,merge>> more than two <<def_branch,branches>>.
-
-[[def_origin]]origin::
-	The default upstream <<def_repository,repository>>. Most projects have
-	at least one upstream project which they track. By default
-	'origin' is used for that purpose. New upstream updates
-	will be fetched into <<def_remote_tracking_branch,remote-tracking branches>> named
-	origin/name-of-upstream-branch, which you can see using
-	`git branch -r`.
-
-[[def_overlay]]overlay::
-	Only update and add files to the working directory, but don't
-	delete them, similar to how 'cp -R' would update the contents
-	in the destination directory.  This is the default mode in a
-	<<def_checkout,checkout>> when checking out files from the
-	<<def_index,index>> or a <<def_tree-ish,tree-ish>>.  In
-	contrast, no-overlay mode also deletes tracked files not
-	present in the source, similar to 'rsync --delete'.
-
-[[def_pack]]pack::
-	A set of objects which have been compressed into one file (to save space
-	or to transmit them efficiently).
-
-[[def_pack_index]]pack index::
-	The list of identifiers, and other information, of the objects in a
-	<<def_pack,pack>>, to assist in efficiently accessing the contents of a
-	pack.
-
-[[def_pathspec]]pathspec::
-	Pattern used to limit paths in Git commands.
-+
-Pathspecs are used on the command line of "git ls-files", "git
-ls-tree", "git add", "git grep", "git diff", "git checkout",
-and many other commands to
-limit the scope of operations to some subset of the tree or
-worktree.  See the documentation of each command for whether
-paths are relative to the current directory or toplevel.  The
-pathspec syntax is as follows:
-+
---
-
-* any path matches itself
-* the pathspec up to the last slash represents a
-  directory prefix.  The scope of that pathspec is
-  limited to that subtree.
-* the rest of the pathspec is a pattern for the remainder
-  of the pathname.  Paths relative to the directory
-  prefix will be matched against that pattern using fnmatch(3);
-  in particular, '*' and '?' _can_ match directory separators.
-
---
-+
-For example, Documentation/*.jpg will match all .jpg files
-in the Documentation subtree,
-including Documentation/chapter_1/figure_1.jpg.
-+
-A pathspec that begins with a colon `:` has special meaning.  In the
-short form, the leading colon `:` is followed by zero or more "magic
-signature" letters (which optionally is terminated by another colon `:`),
-and the remainder is the pattern to match against the path.
-The "magic signature" consists of ASCII symbols that are neither
-alphanumeric, glob, regex special characters nor colon.
-The optional colon that terminates the "magic signature" can be
-omitted if the pattern begins with a character that does not belong to
-"magic signature" symbol set and is not a colon.
-+
-In the long form, the leading colon `:` is followed by an open
-parenthesis `(`, a comma-separated list of zero or more "magic words",
-and a close parentheses `)`, and the remainder is the pattern to match
-against the path.
-+
-A pathspec with only a colon means "there is no pathspec". This form
-should not be combined with other pathspec.
-+
---
-top;;
-	The magic word `top` (magic signature: `/`) makes the pattern
-	match from the root of the working tree, even when you are
-	running the command from inside a subdirectory.
-
-literal;;
-	Wildcards in the pattern such as `*` or `?` are treated
-	as literal characters.
-
-icase;;
-	Case insensitive match.
-
-glob;;
-	Git treats the pattern as a shell glob suitable for
-	consumption by fnmatch(3) with the FNM_PATHNAME flag:
-	wildcards in the pattern will not match a / in the pathname.
-	For example, "Documentation/{asterisk}.html" matches
-	"Documentation/git.html" but not "Documentation/ppc/ppc.html"
-	or "tools/perf/Documentation/perf.html".
-+
-Two consecutive asterisks ("`**`") in patterns matched against
-full pathname may have special meaning:
-
- - A leading "`**`" followed by a slash means match in all
-   directories. For example, "`**/foo`" matches file or directory
-   "`foo`" anywhere, the same as pattern "`foo`". "`**/foo/bar`"
-   matches file or directory "`bar`" anywhere that is directly
-   under directory "`foo`".
-
- - A trailing "`/**`" matches everything inside. For example,
-   "`abc/**`" matches all files inside directory "abc", relative
-   to the location of the `.gitignore` file, with infinite depth.
-
- - A slash followed by two consecutive asterisks then a slash
-   matches zero or more directories. For example, "`a/**/b`"
-   matches "`a/b`", "`a/x/b`", "`a/x/y/b`" and so on.
-
- - Other consecutive asterisks are considered invalid.
-+
-Glob magic is incompatible with literal magic.
-
-attr;;
-After `attr:` comes a space separated list of "attribute
-requirements", all of which must be met in order for the
-path to be considered a match; this is in addition to the
-usual non-magic pathspec pattern matching.
-See linkgit:gitattributes[5].
-+
-Each of the attribute requirements for the path takes one of
-these forms:
-
-- "`ATTR`" requires that the attribute `ATTR` be set.
-
-- "`-ATTR`" requires that the attribute `ATTR` be unset.
-
-- "`ATTR=VALUE`" requires that the attribute `ATTR` be
-  set to the string `VALUE`.
-
-- "`!ATTR`" requires that the attribute `ATTR` be
-  unspecified.
-+
-Note that when matching against a tree object, attributes are still
-obtained from working tree, not from the given tree object.
-
-exclude;;
-	After a path matches any non-exclude pathspec, it will be run
-	through all exclude pathspecs (magic signature: `!` or its
-	synonym `^`). If it matches, the path is ignored.  When there
-	is no non-exclude pathspec, the exclusion is applied to the
-	result set as if invoked without any pathspec.
---
-
-[[def_parent]]parent::
-	A <<def_commit_object,commit object>> contains a (possibly empty) list
-	of the logical predecessor(s) in the line of development, i.e. its
-	parents.
-
-[[def_pickaxe]]pickaxe::
-	The term <<def_pickaxe,pickaxe>> refers to an option to the diffcore
-	routines that help select changes that add or delete a given text
-	string. With the `--pickaxe-all` option, it can be used to view the full
-	<<def_changeset,changeset>> that introduced or removed, say, a
-	particular line of text. See linkgit:git-diff[1].
-
-[[def_plumbing]]plumbing::
-	Cute name for <<def_core_git,core Git>>.
-
-[[def_porcelain]]porcelain::
-	Cute name for programs and program suites depending on
-	<<def_core_git,core Git>>, presenting a high level access to
-	core Git. Porcelains expose more of a <<def_SCM,SCM>>
-	interface than the <<def_plumbing,plumbing>>.
-
-[[def_per_worktree_ref]]per-worktree ref::
-	Refs that are per-<<def_working_tree,worktree>>, rather than
-	global.  This is presently only <<def_HEAD,HEAD>> and any refs
-	that start with `refs/bisect/`, but might later include other
-	unusual refs.
-
-[[def_pseudoref]]pseudoref::
-	Pseudorefs are a class of files under `$GIT_DIR` which behave
-	like refs for the purposes of rev-parse, but which are treated
-	specially by git.  Pseudorefs both have names that are all-caps,
-	and always start with a line consisting of a
-	<<def_SHA1,SHA-1>> followed by whitespace.  So, HEAD is not a
-	pseudoref, because it is sometimes a symbolic ref.  They might
-	optionally contain some additional data.  `MERGE_HEAD` and
-	`CHERRY_PICK_HEAD` are examples.  Unlike
-	<<def_per_worktree_ref,per-worktree refs>>, these files cannot
-	be symbolic refs, and never have reflogs.  They also cannot be
-	updated through the normal ref update machinery.  Instead,
-	they are updated by directly writing to the files.  However,
-	they can be read as if they were refs, so `git rev-parse
-	MERGE_HEAD` will work.
-
-[[def_pull]]pull::
-	Pulling a <<def_branch,branch>> means to <<def_fetch,fetch>> it and
-	<<def_merge,merge>> it.  See also linkgit:git-pull[1].
-
-[[def_push]]push::
-	Pushing a <<def_branch,branch>> means to get the branch's
-	<<def_head_ref,head ref>> from a remote <<def_repository,repository>>,
-	find out if it is an ancestor to the branch's local
-	head ref, and in that case, putting all
-	objects, which are <<def_reachable,reachable>> from the local
-	head ref, and which are missing from the remote
-	repository, into the remote
-	<<def_object_database,object database>>, and updating the remote
-	head ref. If the remote <<def_head,head>> is not an
-	ancestor to the local head, the push fails.
-
-[[def_reachable]]reachable::
-	All of the ancestors of a given <<def_commit,commit>> are said to be
-	"reachable" from that commit. More
-	generally, one <<def_object,object>> is reachable from
-	another if we can reach the one from the other by a <<def_chain,chain>>
-	that follows <<def_tag,tags>> to whatever they tag,
-	<<def_commit_object,commits>> to their parents or trees, and
-	<<def_tree_object,trees>> to the trees or <<def_blob_object,blobs>>
-	that they contain.
-
-[[def_rebase]]rebase::
-	To reapply a series of changes from a <<def_branch,branch>> to a
-	different base, and reset the <<def_head,head>> of that branch
-	to the result.
-
-[[def_ref]]ref::
-	A name that begins with `refs/` (e.g. `refs/heads/master`)
-	that points to an <<def_object_name,object name>> or another
-	ref (the latter is called a <<def_symref,symbolic ref>>).
-	For convenience, a ref can sometimes be abbreviated when used
-	as an argument to a Git command; see linkgit:gitrevisions[7]
-	for details.
-	Refs are stored in the <<def_repository,repository>>.
-+
-The ref namespace is hierarchical.
-Different subhierarchies are used for different purposes (e.g. the
-`refs/heads/` hierarchy is used to represent local branches).
-+
-There are a few special-purpose refs that do not begin with `refs/`.
-The most notable example is `HEAD`.
-
-[[def_reflog]]reflog::
-	A reflog shows the local "history" of a ref.  In other words,
-	it can tell you what the 3rd last revision in _this_ repository
-	was, and what was the current state in _this_ repository,
-	yesterday 9:14pm.  See linkgit:git-reflog[1] for details.
-
-[[def_refspec]]refspec::
-	A "refspec" is used by <<def_fetch,fetch>> and
-	<<def_push,push>> to describe the mapping between remote
-	<<def_ref,ref>> and local ref.
-
-[[def_remote]]remote repository::
-	A <<def_repository,repository>> which is used to track the same
-	project but resides somewhere else. To communicate with remotes,
-	see <<def_fetch,fetch>> or <<def_push,push>>.
-
-[[def_remote_tracking_branch]]remote-tracking branch::
-	A <<def_ref,ref>> that is used to follow changes from another
-	<<def_repository,repository>>. It typically looks like
-	'refs/remotes/foo/bar' (indicating that it tracks a branch named
-	'bar' in a remote named 'foo'), and matches the right-hand-side of
-	a configured fetch <<def_refspec,refspec>>. A remote-tracking
-	branch should not contain direct modifications or have local
-	commits made to it.
-
-[[def_repository]]repository::
-	A collection of <<def_ref,refs>> together with an
-	<<def_object_database,object database>> containing all objects
-	which are <<def_reachable,reachable>> from the refs, possibly
-	accompanied by meta data from one or more <<def_porcelain,porcelains>>. A
-	repository can share an object database with other repositories
-	via <<def_alternate_object_database,alternates mechanism>>.
-
-[[def_resolve]]resolve::
-	The action of fixing up manually what a failed automatic
-	<<def_merge,merge>> left behind.
-
-[[def_revision]]revision::
-	Synonym for <<def_commit,commit>> (the noun).
-
-[[def_rewind]]rewind::
-	To throw away part of the development, i.e. to assign the
-	<<def_head,head>> to an earlier <<def_revision,revision>>.
-
-[[def_SCM]]SCM::
-	Source code management (tool).
-
-[[def_SHA1]]SHA-1::
-	"Secure Hash Algorithm 1"; a cryptographic hash function.
-	In the context of Git used as a synonym for <<def_object_name,object name>>.
-
-[[def_shallow_clone]]shallow clone::
-	Mostly a synonym to <<def_shallow_repository,shallow repository>>
-	but the phrase makes it more explicit that it was created by
-	running `git clone --depth=...` command.
-
-[[def_shallow_repository]]shallow repository::
-	A shallow <<def_repository,repository>> has an incomplete
-	history some of whose <<def_commit,commits>> have <<def_parent,parents>> cauterized away (in other
-	words, Git is told to pretend that these commits do not have the
-	parents, even though they are recorded in the <<def_commit_object,commit
-	object>>). This is sometimes useful when you are interested only in the
-	recent history of a project even though the real history recorded in the
-	upstream is much larger. A shallow repository
-	is created by giving the `--depth` option to linkgit:git-clone[1], and
-	its history can be later deepened with linkgit:git-fetch[1].
-
-[[def_stash]]stash entry::
-	An <<def_object,object>> used to temporarily store the contents of a
-	<<def_dirty,dirty>> working directory and the index for future reuse.
-
-[[def_submodule]]submodule::
-	A <<def_repository,repository>> that holds the history of a
-	separate project inside another repository (the latter of
-	which is called <<def_superproject, superproject>>).
-
-[[def_superproject]]superproject::
-	A <<def_repository,repository>> that references repositories
-	of other projects in its working tree as <<def_submodule,submodules>>.
-	The superproject knows about the names of (but does not hold
-	copies of) commit objects of the contained submodules.
-
-[[def_symref]]symref::
-	Symbolic reference: instead of containing the <<def_SHA1,SHA-1>>
-	id itself, it is of the format 'ref: refs/some/thing' and when
-	referenced, it recursively dereferences to this reference.
-	'<<def_HEAD,HEAD>>' is a prime example of a symref. Symbolic
-	references are manipulated with the linkgit:git-symbolic-ref[1]
-	command.
-
-[[def_tag]]tag::
-	A <<def_ref,ref>> under `refs/tags/` namespace that points to an
-	object of an arbitrary type (typically a tag points to either a
-	<<def_tag_object,tag>> or a <<def_commit_object,commit object>>).
-	In contrast to a <<def_head,head>>, a tag is not updated by
-	the `commit` command. A Git tag has nothing to do with a Lisp
-	tag (which would be called an <<def_object_type,object type>>
-	in Git's context). A tag is most typically used to mark a particular
-	point in the commit ancestry <<def_chain,chain>>.
-
-[[def_tag_object]]tag object::
-	An <<def_object,object>> containing a <<def_ref,ref>> pointing to
-	another object, which can contain a message just like a
-	<<def_commit_object,commit object>>. It can also contain a (PGP)
-	signature, in which case it is called a "signed tag object".
-
-[[def_topic_branch]]topic branch::
-	A regular Git <<def_branch,branch>> that is used by a developer to
-	identify a conceptual line of development. Since branches are very easy
-	and inexpensive, it is often desirable to have several small branches
-	that each contain very well defined concepts or small incremental yet
-	related changes.
-
-[[def_tree]]tree::
-	Either a <<def_working_tree,working tree>>, or a <<def_tree_object,tree
-	object>> together with the dependent <<def_blob_object,blob>> and tree objects
-	(i.e. a stored representation of a working tree).
-
-[[def_tree_object]]tree object::
-	An <<def_object,object>> containing a list of file names and modes along
-	with refs to the associated blob and/or tree objects. A
-	<<def_tree,tree>> is equivalent to a <<def_directory,directory>>.
-
-[[def_tree-ish]]tree-ish (also treeish)::
-	A <<def_tree_object,tree object>> or an <<def_object,object>>
-	that can be recursively dereferenced to a tree object.
-	Dereferencing a <<def_commit_object,commit object>> yields the
-	tree object corresponding to the <<def_revision,revision>>'s
-	top <<def_directory,directory>>.
-	The following are all tree-ishes:
-	a <<def_commit-ish,commit-ish>>,
-	a tree object,
-	a <<def_tag_object,tag object>> that points to a tree object,
-	a tag object that points to a tag object that points to a tree
-	object,
-	etc.
-
-[[def_unmerged_index]]unmerged index::
-	An <<def_index,index>> which contains unmerged
-	<<def_index_entry,index entries>>.
-
-[[def_unreachable_object]]unreachable object::
-	An <<def_object,object>> which is not <<def_reachable,reachable>> from a
-	<<def_branch,branch>>, <<def_tag,tag>>, or any other reference.
-
-[[def_upstream_branch]]upstream branch::
-	The default <<def_branch,branch>> that is merged into the branch in
-	question (or the branch in question is rebased onto). It is configured
-	via branch.<name>.remote and branch.<name>.merge. If the upstream branch
-	of 'A' is 'origin/B' sometimes we say "'A' is tracking 'origin/B'".
-
-[[def_working_tree]]working tree::
-	The tree of actual checked out files.  The working tree normally
-	contains the contents of the <<def_HEAD,HEAD>> commit's tree,
-	plus any local changes that you have made but not yet committed.