Subject: Re: bug#731: 23.0.60; Varying point position after undo

From: Stefan Monnier <[email-masked]>
Date: Sun, 21 Sep 2008 15:30:04 -0400

> !   if ((current_buffer != last_undo_buffer)
> !       /* Don't make an undo boundary when record_first_change will do it
> ! 	 anyway.  */
> !       && (MODIFF > SAVE_MODIFF))

Hmm.. the comment seems to say that calling it is just redundant,
whereas this thread shows that it can actually be harmful.
Could you improve the comment so as to explain why it's harmful?

        Stefan