add missing pretend_user_exists to stage_identification

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 85.56%. Comparing base (1f480bc) to head (40b8ae3).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #512 +/- ## ========================================== + Coverage 85.52% 85.56% +0.03% ========================================== Files 82 82 Lines 8048 8055 +7 ========================================== + Hits 6883 6892 +9 + Misses 756 755 -1 + Partials 409 408 -1 ```

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