Windows don't update after the very first frame, Mouse is a window in itself

[feilen]

With the latest QtWayland, the mouse shows up as a window when you click on another window.

Windows do not update after first being displayed, so statically display the first frame.

This is the output I've been getting:

Cannot send key event, no keyboard focus, fix the compositor
Cannot send key event, no keyboard focus, fix the compositor

I'll attempt to correct it, but so far I've had no luck in tracking down what changed.