Earlier today, a fellow moderator posted a comment. One "too chatty" flag was cast, and Community handled the flag and automatically deleted the comment. Some investigation turned up the fact that the reason only 1 flag was required to delete the comment was because it contained the word "accept". (Apparently there is a filter that lowers the required number of flags to auto-delete a comment when it thinks the comment is talking about accept rates.)
So, that mystery solved, I intended to undelete the comment. Unfortunately this particular comment has no undelete option! On the post's timeline, it shows that the flag was handled by Community, and that the comment was deleted by [name of the user who cast the "too chatty" flag]. When I view the deleted comment, it says "deleted by [name of the user who cast the "too chatty" flag] 12 hours ago". But there is no undelete button.
Is this the intended behavior? I can agree that moderators shouldn't be able to undelete comments that were deleted by their owners (I've been informed that this is the case) but if a comment was automatically deleted by the system (which can make mistakes) shouldn't we be able to fix it? (Not sure if this is a bug or a feature request, so I'm marking it as both; once I know I'll edit accordingly.)