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bug#45947: 28.0.50; comment-dwim and undo in active region
From: |
Lars Ingebrigtsen |
Subject: |
bug#45947: 28.0.50; comment-dwim and undo in active region |
Date: |
Tue, 07 Jun 2022 16:14:47 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
Bodertz <bodertz@gmail.com> writes:
> Undoing with an active region does not always work as expected if
> `comment-dwim' is used. From emacs -Q:
>
> 1. Create a new buffer (C-x b new-buffer RET)
>
> 2. Insert A, B, and C on seperate lines as below
> ('*' represents point)
>
> A
> B
> C*
>
> 3. Create an active region over the last two lines (C-SPC C-p C-a)
> 4. Use comment-dwim (M-; ; RET)
> 5. Create an active region over the last two lines (C-SPC M->)
> 6. Undo (C-/):
>
> A
> ; *
> ; C
(I'm going through old bug reports that unfortunately weren't resolved
at the time.)
I can reproduce this in Emacs 29, too. I wonder whether it's related to
bug#21523 -- it, too, mis-computes the active region at the edges and
includes the wrong thing.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
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