If you click restore in the history tab of the wiki plugin you are taken to a page in a text editor where you can chose to save or cancel (the restore). However, if you navigate away from the page without saving or cancelling the restore still goes through.
It would probably make more sense to either stop this happening i.e you have to implicitly save for a restore to go through (if you navigate away from the page without saving nothing happens)or when you click restore instead of being taken to the edit page you just get a prompt - are you sure you wish to restore this version? yes / cancel
Is there a fix around at the moment for this?