The post-checkout hook ran 'pql plan rebuild' (drop + replay changelog) on every
branch checkout, including 'git checkout -b'. That silently dropped any pql.db
ticket mutation not yet in the committed changelog — e.g. an in_progress status set
right before cutting a feature branch (hit this session: T-1039/T-1043 reverted to
backlog at branch creation).
Git has no pre-checkout/pre-worktree hook, so capture the changelog at post-checkout
instead: when prev-HEAD == new-HEAD (a branch *creation* — content unchanged, pql.db
already correct), run 'pql plan export --stage' (the same flush the pre-commit hook
does) instead of the destructive rebuild. Real branch *switches* (prev != new) still
rebuild to match the branch's changelog.
Verified: simulating a same-HEAD checkout with an uncommitted in_progress mutation now
preserves it (previously reverted).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.8
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