Sometimes, notes in Evernote get changed in a way that cannot be undone using the UNDO function. This even happens if note's text is changed, eg. copying text sometimes it cannot be undone. Other times a note gets marked as changed, updating its 'Updated' timestamp, without really changing anything (like happened to me just now ... again). Now I have a note with some change, but I have no way to find out what the change is and I have no way to throw away that change (whatever it is) and restore the original 'Updated' timestamp. Now the dirty note sits there in my client app, waiting to be sync