Steps to replicate the issue (include links if applicable):
- I made this edit here - https://en.wikipedia.org/w/index.php?title=2026_United_States_strikes_in_Venezuela&diff=next&oldid=1331233834&diffonly=1 , which unintentionally undone another editor's earlier work here [https://en.wikipedia.org/w/index.php?title=2026_United_States_strikes_in_Venezuela&diff=prev&oldid=1331233273&diffonly=1] only several minutes earlier.
- I made another edit here [https://en.wikipedia.org/w/index.php?title=2026_United_States_strikes_in_Venezuela&diff=prev&oldid=1331244837&diffonly=1], and less than a minute later another editor's edit - - https://en.wikipedia.org/w/index.php?title=2026_United_States_strikes_in_Venezuela&diff=prev&oldid=1331244907 , unintentionally reverted my edits when they tried to add in their own edit.
- Another user using an iOS app and editing the same high traffic page, reported the same bug - https://en.wikipedia.org/w/index.php?title=Talk:2026_United_States_strikes_in_Venezuela&diff=prev&oldid=1331487334 , where they made this edit - https://en.wikipedia.org/w/index.php?diff=1331485192 ; that reverted the edit of another user's edit here - https://en.wikipedia.org/w/index.php?title=2026_United_States_strikes_in_Venezuela&diff=prev&oldid=1331485151
What happens?: There are unintentional overwrites due to concurrent editing on high-traffic articles. I observed multiple cases where edits are silently undone when two editors saved around the same time, without getting a clear edit-conflict warning.
Usually when there's an edit conflict, the site occasionally informs you there is one. But other times, it doesn't inform you and your edit simply override/revert the previous editor's edits.
What should have happened instead?:
When you edit an article, it should be able to detect any edit conflict and inform the user flawlessly. It should obviously not let you undo other people's work if that is not even your intention. An improved warning system may help resolve.
Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):
Other information (browser name/version, screenshots, etc.):I am using Chrome browser on Android phone. Another user who reported the same issue, stated they had used IOS Apple phone app.