Is there any simple way to see a diff between the current state of the file and the state that it would be if I were to
u once? Sometimes I would like to see what the last change was (especially when I'm not sure what I pressed) but a simple blink-test (
^r) isn't making the last change obvious.
I could probably perform an undo, then write it to another buffer, then revert the undo, then
vimdiff the buffers. However I am hoping that something simpler exists.