bug#37700: 27.0.50; undo mouse-drag-and-drop-region ineffective

[Mattias Engdegård]

11 okt. 2019 kl. 16.43 skrev Eli Zaretskii <eliz@gnu.org>:
> 
> Given that the region can be easily deactivated, I'm not sure I see
> the sense in introducing options that selectively disable
> region-sensitive behavior of specific commands.

When the user doesn't like the result of an operation, be it a change of mind 
or a mistake, the first logical reaction is to undo. Many users if not most are 
unaware that undo in Emacs is restricted to an active region, and even if they 
know, they are not likely to think of it before instinctively pressing the 
well-learned undo key.

One reason is that no other editor works like this; another is that almost all 
other operations that can be undone either deactivate the region or take place 
wholly inside it, so there is no reason for the user to care about that quirk.

Moreover, users are often aware from experience with other software that the 
time to undo an action is immediately afterwards, with no other potentially 
inhibiting action in-between. Requiring a specific undo-enabling action is 
therefore doubly hostile.