repair_timestamp_iso spot-checker false-negatives on provenance-converted rows (11/50 flagged, 0 actually wrong)
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Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 48/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Quiet
- Tech stack
- python
- Domain
- databases, testing-qa
Research direction
Start by reading docs.local/repair-d-timestamp-live-result.json and the wave25 collab receipt to understand the false-negative cases, then locate the spot-checker and its provenance-aware conversion path. Add the requested DST-boundary test matrix and verify that Asia/Jerusalem-converted WhatsApp rows no longer produce false flags while genuinely incorrect conversions remain detectable.
Written by the indexing model from the issue text.
Description
During the live repair-d window the migration's spot-check reported ok=false for 11 of 50 samples. Lead verification against zoneinfo ground truth showed all 50 stored conversions CORRECT — the checker, not the data, is wrong (likely it re-converts without provenance context or mishandles DST windows; all 11 false flags were Asia/Jerusalem-converted whatsapp rows). A self-check that false-negatives will train operators to ignore it. Fix the checker to replicate the provenance-aware conversion path exactly, add a DST-boundary test matrix. Evidence: docs.local/repair-d-timestamp-live-result.json + wave25 collab receipt DONE_REPAIR_D_LIVE_MAIN.
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- Dominant language
- Python
- Stars
- 9
- Forks
- 7
- Avg merge
- 2h 8m
- Merged PRs (30d)
- 211
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