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From: Oliver Kiddle <okiddle@yahoo.co.uk>
To: Zsh workers <zsh-workers@zsh.org>
Subject: Undo is also confused with narrow-to-region
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Content-ID: <8241.1435937191.1@thecus.kiddle.eu>
Date: Fri, 03 Jul 2015 17:26:31 +0200
Message-ID: <8242.1435937191@thecus.kiddle.eu>

Within narrow-to-region, undo will put back the full BUFFER that is then
duplicated from PREDISPLAY/POSTDISPLAY. After narrow-to-region, the
opposite problem occurs with the part that was not part of the BUFFER
being lost.

This isn't that easy to solve. recursive-edit could save and restore the
undo structures but for some uses of recursive-edit, such as that shown
for it in the manual, that might not be the right thing anyway.

Oliver