desktop switching shows white screen

Submitted by Thomas Spura

Assigned to Olivier Fourdan @olivier

Link to original bug (#9126)

Description

When switching the desktop, especially notable between black/dark workspaces, there is always a white screen in between and then the new windows are drawn on top of it again.

Would it be possible to draw the new screen on top of the old one, without drawing a white screen in between?

Version: 4.10.0