...right, thanks. So you could still make it work but you'd definitely need OS support, it's not something one app can fix.
Edit: You could make this work on an app level by checking if the contents of the user's clipboard is still the value they cut. If yes, revert to whatever clipboard contents you saved prior to the cut. Otherwise do nothing.
It's probably too much hidden behavior to be a good idea, but I think it would match what the user wants in 99% of cases.
edit: Yeah, the problem is that the user does not expect undo to do something different depending on what they did on a different program.
Undo doing nothing to the clipboard always is more consistent and the better UX.