Massive Bug in Architecture

[ognif]

Hello,
after playing around with your control and expand this with a MdiArea and MDISubWindow, I get unexpected issues with your control.

I put a slot to the "Open" ToolButton, to open a MDISub inside the mdiArea.

1.) Open first SubWindow
2.) Open second SubWindow
3.) Window2 is layer on top of window1
4.) Click "New" ToolButton
5.) Now click on Tab "View"

What happens now is that window1 is on top of window2. So the app change something inside the SubWindow Order. This only happens with your control inside. Maybe your Architecture of !DockWidget will fire unexpected events?
I was not able to figure this out. But currently the control is useless with this behaviour. Hope you have a solution or idea for it.
Qt-Ribbon-Widget-master-3.zip

I have added my code as zip file to this issue so you can try to reproduce. Follow the steps I do.