Ensure feature tests pass against Rapid Diffs
<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=451867) </details> <!--IssueSummary end--> We must make sure our existing feature tests for diffs (MRs, Commits, Compare commits) pass when using Rapid Diffs. Some tests might require minor adjustments based on the way we're testing things.
issue