Fiora's lunge hits invisible targets? RIOT PLZ SEE

I notice that Fiora's lunge can hit invisible targets like or champs who have a stealth ability. Also why does her lunge hit champs when they are in a bush and she has no vision in the bush. I would love to know if this was a mistake or if she was suppose to be this broken. And see a change in the gameplay so she cant dominate against stealther like the 3 mentioned when they use a stealth ability. [slayer-pantheon-thumbs]