Bug with Firey Souls and Axe Taunt.

If Lina has enough mana to cast Laguna, Laguna is off Cooldown and she is taunted there is a bug which causes the game to give her firy soul stacks without casting her ult. I just had a game where two rounds in a row my Lina had about 7-8 firey soul stacks just appear during Axe Taunt.