Last modified: 2013-06-25 04:48:34 UTC
On Stack Overflow, when you edit a post within 5 minutes of your last edit and nobody edited the post in the meantime, the edits are merged into one. This way, if you find a mistake in your edit, or if you quickly find something else to change after the edit, only one edit will be visible. I think having full revision history is much more important in MediaWiki than on SO, but something like this could be useful anyway. Maybe something like keeping the default the same, but adding an option to edit the last edit could make sense. (I would be surprised if a feature like this wasn't suggested before, but I didn't find it here.)
I'm not sure how this is supposed to work for MediaWiki - 5 min are already a really long time and bots etc. would revert potential vandalism in way less than 5 min. StackOverflow likely has way less 'heated' changes and fast edits.