Add a warning if a pull request has been changed while it was being reviewed on the pull request page #18028
Description
Feature Description
When i open a PR page ( /pulls/xxxx ), it takes me some time to review the code, read comments and so on. Then, when i press "Merge" it may happen (and it did happen) that the PR submitter has changed the PR in the meanwhile and what was merged by me is not what i reviewed.
It would be good if the /pulls/xxxx page would not proceed with merging and ask for a new confirmation in case the PR has been changed while it was being reviewed.
Gitea 1.15 as deployed on Codeberg.
I did not find a relevant issue open nor closed.
Thank you
Screenshots
No response