Commented Issue: [2.0] Can't close floating window after restoring from minimized [15036]

Steps to reproduce:

1. Run the AvalonDock.TestApp project.
2. Drag a ToolWindow into is own floating window.
3. Minimize the main application (this minimizes the tool window as well).
4. Restore the application by clicking on the icon in the windows taskbar.
4. Click on the "X" in the floating tool window.
5. The window content is closed but the empty window remains open.

Further clicking on the the 'X' button does nothing.
Comments: ** Comment from web user: adospace **

Well, when an issue comes with a fix it's much easier, :)
Thx