Clipman panel plugin incorrectly remembering mouse selections

[Markus Hönicka]

> Matt Connell <matt at connell.tech> was heard to say @ 2023-05-25 16:41 CEST:
> 
>  
> On Thu, 2023-05-25 at 16:16 +0200, Guido Falsi wrote:
> > AFAIK the selection buffer is something X11 does, cannot be disabled by 
> > clients (maybe there is an Xorg/Xserver configuration or option, never 
> > checked). I guess clipman is only displaying what gets put in there by Xorg.
> 
> Interesting.  I didn't even know this was an X11... I guess its a
> feature, based on some reading, and a very old one at that.  It sounds
> like absolute madness to me; why would a user assume any highlighted
> text would be copied?
> 

Presumably because this is how copying with the mouse has always worked in X11? Mark something with the left mouse button, paste it somewhere else with the middle button.
Markus