If you go into the revision history and select to rollback to a previous edit on a post which also has a suggested edit pending on it, it works. Even odder, the suggested edit remains active on the post for approximately 10 more seconds before it gets rejected by... no one?
Which way is it supposed to be? "Rejected by Community" or not allowed to rollback while there's a pending suggested edit?
P.S. I'm curious if making an edit through the revision history would also work. Clicking "edit" in the revision history actually brings up the edit screen, but I don't want to submit and accidentally waste another user's suggested edit.