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Git SHA-256 repos emit a 64-character zero OID for deletion pushes. Hardcoding only the SHA-1 40-zero form made `git push --delete` fail with Invalid revision range errors. Fixes pre-commit#3664.
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Summary
pre_commit/commands/hook_impl.pyhardcodedZ40 = '0' * 40for deletion / new-branch detection on pre-push. SHA-256 repositories emit a 64-character zero OID, sogit push --deletefell through intogit diffagainst the zero OID and failed.Accept an all-zero OID of length 40 or 64 via
_is_zero_oid().Fixes #3664.
Test plan
_is_zero_oidNone(noop) like SHA-1