[GAMEPLAY] Heimerdinger's turrets do not attack inhibitors immediately

Let's say I'm at an inner tower next to an inhibitor. I will set one of MY turrets between the tower and inhibitor. Once the tower is destroyed, MY turret(s) that are laid down will not attack the inhibitors, even when minions aren't around. I'd have to lay down new turrets in order for them to start attacking it. If I don't have turrets to lay down, I'll have to wait a while because my current turrets simply won't attack the inhibitor.