Only set X11 selection on mouse release
requested to merge ninjalj/konsole:work/ninjalj/fix-462338-x11-selection-only-on-mouse-release into master
Since the beginning of time, konsole has been setting the X11 selection on mouse release, on double click, and on triple click. This results in intermediate entries being created on klipper, e.g. for double click you get the initial word, and the final selection when you eventually release the mouse button.
Note we still will get an intermediate entry on triple click (double click release), but we still prevent one intermediate entry (triple click entry) on that case.