[Gameplay] Bard Meep/Auto Attack

So, I don't know if this happens against all champions, but if I start autoing Tahm as Bard, and he hits me with his Q, my AA will actually cancel, and he'll stand there in a ragdoll pose for a second, then go into the slow animation (I think it has to do with the slow animation), but my meep will still fly off and hit him, even if he is way out of range of my AA. I looked, and my actual AA doesn't go off, but the meep attack does.

Not sure if it's just Tahm, or if the slow is even a part of it, but there you go, Riot.