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Signatures live in the shared repository config, so signing in one worktree invalidates every other worktree whose configuration or hooks differ. When extensions.worktreeConfig is enabled, read and write them with `git config --worktree` instead; without the extension `--worktree` fails in a repo with linked worktrees, so `--local` remains the default. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Wo4FerFK9aaxrGrmVE9ncZ
apiology
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October 21, 2026 20:57
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Claude: This PR was written by Claude Code on behalf of @apiology.
Problem
Signing in one git worktree breaks commits in the others:
Anyone whose worktrees carry different
.overcommit.ymlfiles or hook plugins (e.g. branches that change the config) has to re-sign on every switch.Solution
When
extensions.worktreeConfigis enabled, signatures and the recordedverify_signatureschoice are read and written withgit config --worktreeinstead of--local, so each worktree keeps its own; without the extension--worktreefails in a repo with linked worktrees (fatal: --worktree cannot be used with multiple working trees unless the config extension worktreeConfig is enabled), so behaviour there is unchanged.