Repro:
1. Enable Quickcast
2. Turn "Quickcast On Key Down" option off
3. Level up view times
4. Open the ability learn overlay
5. Press your quickcast hotkey to level up a spell

Result: If you can level up the spell multiple times, that 1 key press will level it up twice, once upon pushing the button down, and once again upon releasing the button.

Expected: While having the learn overlay open, the spells should not react on key-up. The spell should be leveled up once per press, not twice.