bug#18090: 24.4.50; `delete-selection-helper' logic changed for non-mouse region?

[Eli Zaretskii]

> Date: Wed, 19 Sep 2018 10:51:39 -0700 (PDT)
> From: Drew Adams <drew.adams@oracle.com>
> 
> ping
> 
> > Sent: Tuesday, April 3, 2018 2:06 PM
> > ping
> > Could someone else please take a look at this?
> > Thx.

That change was made due to problems described in this thread:

  http://lists.gnu.org/archive/html/emacs-devel/2007-06/msg01642.html

FWIW, I cannot reproduce the original problem reported by Juri in that
thread, in Emacs 22.1, which according to my calculations was released
before the change.  So I cannot dig deeper into the issue, but my
first thought was that this code needs to be rethought/augmented due
to changes in Emacs 24 regarding selections, since currently the
default is not to copy to the kill-ring the region selected by
dragging the mouse.

I also don't think I understand your report, Drew.  What exactly is
the problem you are complaining about?  Surely, the problem is not the
code, but its effect; however, all you say about the effect is that
"yanking point is rotated only when the mouse was used".  I don't
understand what "rotating yanking point" means, let alone why it is
problematic.

I hope Juri, who made that change, will be able to investigate some
more.