Ahri Spirit Rush Targeting Bug

So when a champion is in a bush(stealthed) ahri's w wont target them but if there is a ward in the bush it will, completely makes sense. However, this doesn't apply with her ulty; if you are outside of the bush and an enemy champ is inside it but you have a ward in the bush your ulty still wont target them even though your w will. To make things even more bizarre her ulty wont target anyone if you are in a bush and they are right outside of the bush even though her w will.