[Gameplay] Viktor Q/Teemo Mushroom bug

After Viktor proc's his Q on anything and then uses the enhanced auto attack on a Teemo mushroom, the teemo mushroom takes no damage, and "Invulnerable" appears above the mushroom. regular auto attacks deal damage normally though.

Nothing special is required to recreate this bug. Just get an item that gives you vision of teemo shrooms and then Q something to give yourself the enhanced auto.