Draven Yorick Bug

If Draven dies before his ultimate comes back to him during Yorick ult, he will no longer be able to use his ult for the rest of the game.

1. Have Draven and Yorick on the same team
2. Have Yorick ult Draven just before death
3. Have Draven use ult, but before it comes back, have the yorick ult run out (die again)
4. You will find that the ult cooldown will never reset and when you call it back, the ult will never return to you.

I was playing Draven in a normals match and was Yorick ulted just as i died. We began chasing the enemy and i decided to ult. It missed and it continued all the way across the map. As i died (again), i noticed the ult never came back and the cooldown never reset. This remained this way for the entire game and when i tried to call the ult back, it never returned. I could not use ult for the entire game since then.

Evidence- http://gyazo.com/1b70e4bfe9668886e7bc7bd75a3b1921

Video Evidence- https://www.youtube.com/watch?v=qe4yhr13cpk