Why: the migration safety net (archive refs, bundles, SHA maps) had never
been exercised; verification rules treat untested recovery as a claim.
Evidence: 15/15 drill checks in a remote-only fresh environment (fsck, tip
and count matches, go test passing on the restored pre-rewrite tip, parent
gitlink reachability); the found gap — chain SHAs only in local bundles —
fixed by pushing refs/rewrite-backup/pre-2026-09-30-chain.
Impact: record-only; backend full-chain restore noted as a known, accepted
limitation.
Refs: 2026-09-30-history-migration.md; 2026-09-30-history-migration-sha-map.md
weichen
merged commit 9b761245b2 into main2026-09-30 04:03:25 +00:00
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恢复演练记录：15/15（fsck/tip/计数/恢复点 go test/父仓 gitlink 可达性）；发现并修复安全网缺口（链 SHA 补推远端 -chain 归档引用）；backend 全链恢复记为已知限制。