Something triggered Community♦ to rollback/do some changes on [this question][1].

It also changed the title; it added `Undo edits` to the end of the title. It doesn't show up when you have a look at the revisions. I'm sure it wasn't there from the beginning as I had done some research for the Q.

Possible bug?


![enter image description here][2]


  [1]: https://serverfault.com/posts/395277/revisions
  [2]: https://i.sstatic.net/5NOiI.png