I edited a question and among other things I changed
cron. Another user also edited the question at about the same time. I thought my edit was better, so I rolled back to my edit, but instead of
cron, it still says
Question after rollback:
As you can see, the result of the rollback is completely different from my edit. My edit was useless, because there is no way to get it back. This is quite frustrating.
Not sure if this is relevant, but I was improving a suggested edit and then did a rollback.