fix(Audit): Stop error noise when deleting segment overrides

[emyller]

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Changes

Closes #6792

Fix FeatureSegment.DoesNotExist noise when deleting a segment override individually, or cascaded by deleting a segment. There's no need to reprocess tasks because the audit trail is not affected.

How did you test this code?

Reproducing the Sentry error in a new test.

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3 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
docs	Ignored	Preview	Mar 13, 2026 2:55am
flagsmith-frontend-preview	Ignored	Preview	Mar 13, 2026 2:55am
flagsmith-frontend-staging	Ignored	Preview	Mar 13, 2026 2:55am

[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-e2e:pr-6941	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-frontend:pr-6941	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-api-test:pr-6941	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api:pr-6941	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-6941	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-6941	Finished ✅	Results ✅

[github-actions]

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 10 passed

Details

 10 tests across 7 suites
 51.6 seconds
 2991564
 🔄 Run: #15284 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-16)

 10 passed

Details

 10 tests across 7 suites
 50.1 seconds
 2991564
 🔄 Run: #15284 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

 1 passed

Details

 1 test across 1 suite
 54.4 seconds
 2991564
 🔄 Run: #15284 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 1 passed

Details

 1 test across 1 suite
 1 minute, 9 seconds
 2991564
 🔄 Run: #15284 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-16)

 10 passed

Details

 10 tests across 7 suites
 28.3 seconds
 849b5b4
 🔄 Run: #15285 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 10 passed

Details

 10 tests across 7 suites
 29.4 seconds
 849b5b4
 🔄 Run: #15285 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-16)

 10 passed

Details

 10 tests across 7 suites
 11 seconds
 e2da62d
 🔄 Run: #15287 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 10 passed

Details

 10 tests across 7 suites
 46 seconds
 e2da62d
 🔄 Run: #15287 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 16 passed

Details

 16 tests across 13 suites
 35.7 seconds
 e2da62d
 🔄 Run: #15287 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

 1 passed

Details

 1 test across 1 suite
 54 seconds
 e2da62d
 🔄 Run: #15287 (attempt 1)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.31%. Comparing base (1c67f96) to head (e2da62d).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6941   +/-   ##
=======================================
  Coverage   98.31%   98.31%           
=======================================
  Files        1335     1335           
  Lines       49717    49745   +28     
=======================================
+ Hits        48879    48907   +28     
  Misses        838      838           

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[khvn26]

Looks okay to me 👍