Docking undocking of QGLWidget on a secondary monitor results in a blank widget

If a GLWidget is placed in QDockWidget, and if the mainwinndows is brought to the second screen then docking/undocking does not update the GLWidgdet like inititally if it was black after dock/undock it is not black and does not update its property on resize.

Following example can be used to reproduce. with following steps:

1.) Immediately after launching drag the window to the secondary monitor. (Probably not needed)
2.) Press the button to undock the QGLWidget. (I believe it is important that when it undocks it is on the secondary monitor, meaning that if you previously undocked on the primary monitor and the widget undocks back there the bug won't reproduce.)
3.) Double click on the QGLWidget title bar to re-dock it.
4.) Press the tab to activate the QGLWidget.
5.) Resize the window. It's filled with gibberish.