Phantom Dancer no longer ignores unit collision.

In my ranked game as Sivir on 01/29/2018, I found a bug pertaining to the passive associated with Phantom Dancer. It states that having the item will allow you to ignore unit collision. However I found that this was not the case as I was taking down an inhibitor turret with my team and an enormous wave of minions. My character was clearly zig-zagging back and forth trying to find a spot close enough to attack the turret. It did not affect me personally from winning the game, but I believe that this is still a significant bug.