[GAMEPLAY] Trundle can still use his Q spell while inside Tahm Kench's W

Was playing a One For All game as Trundle vs Tahm Kench, and while a Trundle ally was inside a Tahm Kench's W (Devour), that Tahm who devoured him walked closely to another ally Tahm Kench, and the Trundle inside him managed to use his Q spell and kill him.

Here is a recording of this issue in-game:

Trundle uses Q inside Tahm's W

It's obvious that this is not intended to happen in the game, so please fix this.