<!--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=504330) </details> <!--IssueSummary end--> # How to replicate Go to a Project that has some history, go to Manage -> Activity and look at the history. Open a Merge Request, go to Changes view, add some comments on some lines in diffs (e.g. I added 20 comments). Delete one of the comments/threads then refresh the Activity page. All of the project's history is gone up to last 20 items. Before   I deleted comment "10", only the comments after "1" are shown, comments "ffff" and earlier are no longer shown: