Yasuo dash and attack animation bug

I was playing in custom game with yasuo just to pass the time and when i was attacking a dragon i dashed through him with my back against him and he did the attack animation turning around for a millisec and then back again i tried it with champions and redbuff just to see if its happening all the time and it does. Just dash through and attack dont move around and it like glitched or something and from the looks of it, it seems very weird and odd, i dont know if it makes your attacks longer because of the animation or not. Hope it gets fixed because its very annoying to watch.