fix(tvix): Partially revert "eliminate exposed global variable" r/1581

This reverts part of commit 976a36c2e482f416acd79a624e6d96cce2564b5b,
which was causing scanForReferences to hang indefinitely. I'm not sure
what the original intent of the commit was since there's not really much
of a commit message on it, but with this I am able to fully realise
derivations.

Change-Id: I620e892e2fe2244f066512286b086b3dd8f8f6c0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1635
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: kanepyork <rikingcoding@gmail.com>

0 files changed, 0 insertions, 0 deletions