Summary:
Alt-tabbing the game in windowed mode alternatively reveals and hides the UI, due to the [Tab] button being used to hide the UI. Have not tried in other windowed / full-screen settings, but would expect the same behaviour.
Steps to reproduce:
Start a game, alt-tab out of it and back into it.
Expected Results:
Nothing happens: game is able to distinguish between Alt-Tab & Tab.
Actual Results:
See above.
Versions and Mods:
r134, no mods.
. That’s what I get for not paying attention I guess ^^ .