bug#11588: 24.0.97; Left mouse click setting the mark every time?!??

[Chong Yidong]

Tobias Bading <tbading@web.de> writes:

> Marking the start of a region with C-SPC and then using a simple mouse
> click to mark the end doesn't work anymore, because clicking anywhere
> seems to set the mark now.  My muscle memory, trained over decades by
> Emacs 23 and its predecessors, doesn't like this change.
>
> Is there a customization option that I've overlooked which prevents
> <down-mouse-1> (or is it <mouse-1>?) from setting the mark?

mouse-1 does not set the mark, but it does deactivate the mark if the
mark was active.  But that is the case in both Emacs 23 and Emacs 24, so
I don't know what you're talking about.

To extend the region, the usual Emacs command is mouse-3 (right click),
which works in both Emacs 23 and Emacs 24.