Unclear The finding does not say what pinned and as_is do differently.
What
Claude Code has an internal helper that runs git to work out diffs, which are the differences between versions of files. It also finds the merge-base, the commit two branches last had in common. The helper now takes an objectGraph option that defaults to pinned. Merge-base lookups use as_is instead.
The helper also now runs the git program it has located on your machine, rather than one at a fixed path.
Why
This is mostly internal. Running the located git program instead of a fixed path may matter if git is installed somewhere unusual on your machine.
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The writer flagged doubt
The finding does not say what `pinned` and `as_is` do differently.