Re: Undo discard prompt

[Richard Stallman]

    > In cua-mode, I also needed more advanced undo information to make undo
    > work correctly for the advanced rectangle commands.

    We really need to keep a file of "HACKS" that we should get rid of.
    It would contain things like defadvice that someone had to use to work
    around the lack of a hook (e.g. for uniquify), or other such things that try
    to workaround the lack of a particular feature.

We should put these things in TODO.