Window Snap, forgets the Windows original position by clicking the bottommost-rightmost-"Show-Desktop"-button

reported and tested by @hbelusca on build number 0.4.15-dev-8552-g24517d5 in chat:

hi @whindsaks , maybe you know this problem in window snapping (in ROS), but if not, let me describe it:

• open an app eg. notepad, ensure it's not maximized;
• snap it somewhere, e.g. left of screen;
• verify that when you unsnap it, it takes back its original size, OK
• snap it back to the left, then click on traybar's minimize-to-desktop button (bottom-right), and click a 2nd time to restore the window(s);
• unsnap the notepad window: it doesn't restore to its original size, but keeps the size it had while it was snapped.