Mark commit as reviewed
When reviewing a large merge request with many commits I might not be able to review them all in one sitting. It would be helpful to be able to mark a commit as reviewed so I don't get confused and review the same commit multiple times, or forget to review a specific commit.
Originally proposed as an aside in #39380 (closed):
better would be to have one more button 'mark commit as reviewed', so one can clearly see what commits haven't been reviewed by him yet.
Add a way to mark a commit as seen/reviewed