refactor(read-tree): Keep traversing even if a default.nix is found r/97

This makes it possible for people to drop a default.nix into folders
along the way that add additional things into the attribute set at
that level.

These default.nix files are imported and merged with the rest of the
traversal from that point on. In theory nothing stops a user from
putting a derivation into one of them, but the effects of merging that
derivation's underlying attribute set with random other things from
the traversal are undefined.

This feature is being introduced for a slight revamp of the thirdParty
layout.

0 files changed, 0 insertions, 0 deletions