> From: Eric Hanchrow <eric.hanchrow@gmail.com>
> Date: Sun, 13 Dec 2015 18:19:52 +0000
> Cc: 22120@debbugs.gnu.org
>
> I glanced through (info "(elisp) Undo") and didn't see any sort of warning.
> Should we add one? I can certainly stick something in there myself, but doubt
> it'd be quite correct.

Let's not get ahead of ourselves: first, let's see if my guess holds
any water, and only afterwards let's worry about documenting whatever
we find.

OK?