Sylas voice bug

The bug is simple and its not that big so maybe me and some other people seen it. The bug happend when you take someones ult with Sylas and then press Control + 2 (I have seen it with Control + 3,so dont know if it works with other Control combinations),then you will hear the Voice of the champion that ult you have(his Control + 2,3...). I try it more than once and its weird xD. Riot please fix it, and community I recommend you to try its simple and funny.