Log instances of flows stealing URNs

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 55.55556% with 8 lines in your changes missing coverage. Please review.

Project coverage is 63.63%. Comparing base (d930b85) to head (a8b4b18).

Files with missing lines	Patch %	Lines
core/models/contacts.go	46.66%	8 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #353 +/- ## ========================================== + Coverage 63.60% 63.63% +0.02% ========================================== Files 193 193 Lines 10721 10724 +3 ========================================== + Hits 6819 6824 +5 + Misses 2992 2990 -2 Partials 910 910 ```

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