Quinn and Valor + Tahm Kench broken bug. (Infinite Valor)

So today I was playing a game with Quinn , when a fight broke out in bot lane, my support which was Tahm Kench ate me. After getting a double kill, I realized that I was still in Valor form, unable to turn back into Quinn by pressing R. My Ult CD stayed a 138 seconds and I couldn't press R. I had no bonus speed from my ult, and I felt almost useless flying around like a bird that was drunk slow. I died, yet I still re-spawned bugged. Sorry for the crappy picture, it took it with my phone but there it is for some proof. When i pointed at R, it said spell not found. This is a huge problem, since it happened twice to me today, so I decided to report it. I'm glad I wasn't playing ranked. This is one of the most funny glitched I've encountered, but also really annoying. I love Quinn, but I wished Rito would have more attention on her.

PS~ I wish Quinn and Valor were like Nidalle and Elise, and Jayce. Switch forms.