4649: Add suppport to restart a review bot

Misery

What version of Review Bot are you using?

1.0

Which tool(s) does this relate to?

All

Describe the enhancement and the motivation for it.

Sometimes an "internal error" occur because of a broken review bot or testing enviroment. This leads to an "internal error" for this diffset. After an admin fixes the testing environment it would be helpful to manually press a "restart" button to restart the review. Otherwise a no-op diffset is needed.

misery
#1 misery

Ping, not listed anymore for me.