Subject: bug#52798: 27.2; `undo' causes `buffer-undo-list' to grow exponentially

From: Lars Ingebrigtsen <[email-masked]>
Date: Wed, 29 Dec 2021 17:29:26 +0100

Vladimir Panteleev <[email-masked]> writes:

> As far as I can see, the undo (and undo-only) command causes
> buffer-undo-list to grow exponentially. This causes information about
> previous entries to eventually be displaced.

I can reproduce this in Emacs 29, too.  Perhaps Stefan has some
comments; added to the CCs.

-- 
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   bloggy blog: http://lars.ingebrigtsen.no