Bug - Janna's tornado instant release

Since some day last week I'm able to 100% reproduce this bug in a custom game using Janna after noticing my tornado would charge and not release in games despite me hitting the Q key twice.

After some testing in custom games, I noticed If I hit Q twice very fast (same speed as you would double-click your mouse), the game recognize both of my key strokes as I can hear the sound it makes when you cast a skill, but the tornado doesn't release and keeps charging. I tried waiting a slight delay for the second Q and it works but this is making it harder to cancel dashes as this requires quick reflexes.