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fix: stabilize duplicate finding fingerprints - #7

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fix/stable-clone-fingerprints
Nov 5, 2026
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dominicnunez merged 1 commit into
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fix/stable-clone-fingerprints

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An unchanged duplicate finding can receive a different fingerprint when unrelated groups alter the unstable ordering of equal-location candidates. Break those ties by content key so exact exceptions and baselines remain stable as unrelated clones are added.

Adds a failing-before/passing-after coalescer regression and public Analyze stability coverage. Thresholds and merge rules are unchanged. Correcting the old tie order can change affected fingerprints once; the README documents reviewing refreshed exact exceptions.

Validation: Go 1.27.3 formatting, tidy diff, module verification, vet, full race tests, build, and self-Gallow CI scan passed. The regression fails against the original production code; consumer CLI diagnostics also retain the original identity after the fix. CI additionally covers Go 1.26.x.

Closes #6.

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Codex Review Summary

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Review Status Commit Review trigger
📝 Code Review ✅ Completed 2026-11-05T10:46:50.570375Z 881e074 PR opened
🔒 Security Review ✅ Completed 2026-11-05T10:47:53.745315Z 881e074 PR opened
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@dominicnunez
dominicnunez merged commit 4693094 into main Nov 5, 2026
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@dominicnunez
dominicnunez deleted the fix/stable-clone-fingerprints branch November 5, 2026 10:50
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fix: stabilize duplicate fingerprints for equal-location groups

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