[Windows] Going into fullscreen mode and out again causes the window title bar to permanently disappear

[nshcat]

Only reproducible on Windows for me so far.

[azonenberg]

Meanwhile for me on my WaveRunner, fullscreen mode makes the GUI stop updating and doesn't truly fullscreen. Sounds like it's bugged all around, possibly >1 issue.

[azonenberg]

Wontfix on glscopeclient, works fine in ngscopeclient now.