Game Pausing bug

This bug caused my HC character to die so I am a bit pissed about it.

Reproduction steps:
- Press P in-game, open the skill tree in a non-town non-boss zone
(Game pauses in the background)
- Press any of your flasks
(Game continues in the background)
- You die because apparently it made your instance UNPAUSE while the skill tree is open.

Same applies to "Shop" UI ("m" default keybind).

Why? Is this intended? Don't let me press any flasks, anything that might break the pause while my skill tree is open.

Also if you open the skill tree while casting a spell, it pauses then immediately unpauses the game.

Repro:
- Start casting Kinetic Bolt
- Immediately press P (skill tree) while the KB cast is ongoing
- It pauses and then unpauses the game.
- You die.