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fix: always update fingerprint stability; assert tracker fields preserved on skip

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- Move fingerprint stability update before early return so it updates even when payload hash matches
- Remove duplicate stability assignment from detect_tracker result block
- Add assertion in test to verify tracker fields are preserved when detection is skipped

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
James Smith
2026-05-19 14:49:51 +01:00
parent 260240728a
commit e6e6cb3b9a
2 changed files with 6 additions and 2 deletions
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utils/bluetooth/aggregator.py
+3 -1
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@@ -334,6 +334,9 @@ class DeviceAggregator:
# Record sighting for persistence tracking.
self._tracker_engine.record_sighting(fingerprint.fingerprint_id)
# Always update stability (can change as device fields are filled in).
device.payload_fingerprint_stability = fingerprint.stability_confidence
# Only re-run the expensive signature scan when the payload has changed.
if fingerprint.fingerprint_id == device.payload_fingerprint_id:
return
@@ -356,7 +359,6 @@ class DeviceAggregator:
device.tracker_confidence_score = result.confidence_score
device.tracker_evidence = result.evidence
device.payload_fingerprint_id = fingerprint.fingerprint_id
device.payload_fingerprint_stability = fingerprint.stability_confidence
def _update_risk_analysis(self, device: BTDeviceAggregate) -> None:
"""Evaluate suspicious presence heuristics for a device."""