bug#9623: mouse wheel scroll increases size of selected region

[Chong Yidong]

Glenn Morris <rgm@gnu.org> writes:

> David De La Harpe Golden wrote:
>
>> http://lists.gnu.org/archive/html/emacs-devel/2009-11/msg00459.html
>
> I don't know anything about this, other than that I forwarded it as
> http://debbugs.gnu.org/cgi/bugreport.cgi?bug=5014 and that it was never
> applied. It depends on a previous "cleanup" patch which does not apply
> to the current trunk.

I've committed a slightly different fix.