Comment 4 for bug 1595457

I can reliably reproduce this with Pluma:

1. Enable Compiz.

2. Open Pluma.

3. Drag the top of the window to the top edge of the screen so that the window snaps (maximizes) to the top and bottom edges of the screen.

4. Observe that there is an invisible obstacle preventing interaction with part of the window minimize/maximize/close buttons.