Summary: Clicking on the caption of a manage window does not move the focus as it should. This results in ugly artifacts.
Steps to reproduce: 1. Fire up Notepad 2. Open the "Open" dialog (File | Open) 3. Expand the "Look in" dropdown (the one at the top, with the drives) 4. Click on the dialog caption, and drag it away Result: The dropdown does not close, and remains on the spot.
Any way to know that the WM has now the focus, so we can release it?