I was not able to find other posts on this issue. So if I missed it, my apologies.

I am in a situation where I need to use the GXT 3 WindowManager for both GXT 2.2.5 and 3.0.0 Windows.
I can register both types of Windows, but I can only unregister 3.0.0 Windows

public void register(Widget widget) {...}
public void unregister(Window widget) {...}
Notice that the unregister method takes in a Window, not a Widget.

Has this been resolved?