GNU bug report logs - #1501
Emacs 22 loses undo buffer

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Message #69 received at 1501 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: Noam Postavsky <npostavs <at> gmail.com>
Cc: Emerick Rogul <emerick <at> gmail.com>, 1501 <at> debbugs.gnu.org,
 Chong Yidong <cyd <at> stupidchicken.com>
Subject: Re: bug#1501: Emacs 22 loses undo buffer
Date: Wed, 21 Aug 2019 16:46:26 +0200

Noam Postavsky <npostavs <at> gmail.com> writes:

> Stefan Kangas <stefan <at> marxist.se> writes:
>
> > increase in the memory usage of each undo record, especially when
> > using font-lock-mode.  I'm not sure that is a serious problem, since
> > memory is only getting cheaper, but it might be worth investigating.
> > On the other hand, we could just decide that this is not worth the
> > effort and close this as wontfix.
>
> Hmm, it sounds like the problem might just be due to saving text
> properties in the undo records?  If so, maybe a simple fix is to just
> drop them (or drop only face and font-lock-face properties).

Is it not worth saving also that information?

Thanks,
Stefan Kangas

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