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Krzysztof kuhy Rudnicki
cef72fbab0
TachiyomiSY 1.13.2 can report a restore as SUCCESS while writing almost nothing, then sync that near-empty library up and replace the only good copy. On 2026-08-09 a 14 MB payload holding 2182 manga became a 267 KB stub, and the real library survived only as stale pages in the SQLite write-ahead log. The upstream bug is Kotlin in an APK and cannot be fixed here, so this targets the fixable half: decode the payload, count what is actually in it, and refuse to treat a collapse as normal drift. A pure is-it-zero check would have caught this incident but not the harder case upstream describes, where a restore keeps some entries and drops the rest, so the threshold is proportional. Categories get their own rule because all 2182 manga survived the round trip and all 18 categories did not. Adds the setup script and a runbook covering the WAL-page salvage used to recover the library on the day. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YQLwdquDCNmWtvgi3Lk72J |
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