bug#9894: mouse-yank-primary does not set mark

[Stefan Monnier]

>> Using the mouse, hold down the left mouse button and drag to select the
>> text "buffer is for" in the scratch buffer.
>> Release left mouse button, move mouse towards the bottom of the window.
>> Press middle button to paste the previously selected text.
>> Press C-x C-x.
>> The cursor goes to the near the start of the buffer, just after "This".
>> 
>> Contrast with Emacs 23.3, where the cursor goes to the start of the text
>> that was just pasted. Perhaps the new behaviour is intentional?

Yup that's a bug.

> Mouse-2 is now bound to a different command than it was in Emacs 23.3,
> as you well know.  Isn't this change part of the selection-related
> changes in Emacs 24 that the different binding was part of?  Pasting
> with mouse-2 doesn't go through the kill ring now.

Yes, it has changed, but that doesn't mean it shouldn't push a mark
like the old code did.


        Stefan