It reboots, and it says there are 11 changes to be done. I think, "Well, that's odd, but whatever." After the 4th one I realize what's happening ... it's doing all my changes, including the ones I un-did, and then doing the opposite of the action for when I pressed undo. How fucking stupid. Whoever implemented that should be taken out back and shot.
But it's okay, because I'm eating apple sauce and listening to Bran Van 3000. I just wish it'd finish in the next hour... it's so slow.