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bug#26061: 26.0.50; cancel-change-group fails with "unrelated state" err
From: |
Braun Gábor |
Subject: |
bug#26061: 26.0.50; cancel-change-group fails with "unrelated state" error if used after an undo |
Date: |
Mon, 16 Aug 2021 14:01:01 +0200 |
> I can reproduce this problem in Emacs 26.1, but it seems to be gone in
> Emacs 27.1 (and 28), so I'm going to go ahead and guess that this has
> been fixed
I can see the fix in the following snippet of `cancel-change-group' in
Emacs 27.1 code. The faulty logic with `last-command' and `undo-start'
has been gone. (... denotes omitted code.)
(let (...
;; Use `pending-undo-list' temporarily since `undo-more' needs
;; it, but restore it afterwards so as not to mess with an
;; ongoing sequence of `undo's.
(pending-undo-list
;; Use `buffer-undo-list' unconditionally (bug#39680).
buffer-undo-list))
Thank you for checking in recent Emacs versions.
Best wishes,
Gábor