Please do not close this as a duplicate unless you can remove the “status-completed” tag from the original report (because it’s obviously not been completed).
Steps to reproduce:
- Have someone post an answer.
- Downvote the answer.
- Have the someone edit the answer within the initial 5 minutes of the answer’s existence.
- Try to undo the downvote more than 10 minutes later.
You cannot undo the downvote.