With this patch if you #undo you can see what you undid. Without it, #undo silently just does something and you know not what.
This seats on the top of #1, but I'm +1 to the second commit (for the first one, see my comment in #1)
With this patch if you #undo you can see what you undid. Without it, #undo silently just does something and you know not what.