Shaco Q autoattack bug [GAMEPLAY]

So when you use Shaco's Q , all of your moves cancel, or at least its supposed to do so. But if you are running after someone and use the Q with your mouse on top of your enemy, it will automaticly melee them turning off your invisibility, this is actualy of great inconvinience and has happen to me not frequantly but almost. I linked a video (which is not mine, its by pink ward) where he explains it. Hope it gets fixed soon !