A curious thing happened. I edited the tags on a question. Simultaneously, a user proposed an edit to the title of the question. That user's edit was approved a few minutes later, and one effect of the approval, not intended by the other user or the approver, was to undo my tag edit. Is that a bug?
- 2013-10-21 11:59:14Z Gerry Myerson edited tags
- 2013-10-21 11:59:17Z suggested Carsten Schultz
The edit was suggested exactly 3 seconds after your edit. In other words, it was always shown as "changing the title and removing a tag" to the reviewers -- there was no overwrite.
You can see the public timeline here: https://math.stackexchange.com/posts/534377/revisions but it does not show the exact times the edit was suggested, which I've found in the mod-only logs.