GNU bug report logs - #37700
27.0.50; undo mouse-drag-and-drop-region ineffective

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Package: emacs;

Reported by: Mattias Engdegård <mattiase <at> acm.org>

Date: Fri, 11 Oct 2019 11:52:02 UTC

Severity: normal

Found in version 27.0.50

Done: Mattias Engdegård <mattiase <at> acm.org>

Bug is archived. No further changes may be made.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Mattias Engdegård <mattiase <at> acm.org>
Cc: 37700 <at> debbugs.gnu.org
Subject: bug#37700: 27.0.50; undo mouse-drag-and-drop-region ineffective
Date: Fri, 11 Oct 2019 15:26:21 +0300

> From: Mattias Engdegård <mattiase <at> acm.org>
> Date: Fri, 11 Oct 2019 13:51:38 +0200
> 
> Undoing mouse-drag-and-drop-region doesn't work:
> 
> 1. (setq mouse-drag-and-drop-region t)
> 2. mark a region
> 3. use the mouse to drag the region elsewhere
> 4. Undo (twice)
> 
> Result: the dragged text disappears from its destination, but does not reappear where it was dragged from.
> Instead, we get the "No further undo information for region" error.

Why is that a problem?  Emacs cannot possibly "un-dnd" text, it can
only remove the copy, which AFAIU it does.
This bug report was last modified 5 years and 267 days ago.

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