[CLIENT] Clicking Play Again in ARAM with Party sends you to Custom Games

Alright, so I play League with my brother, who loves to play ARAM, and this has happened each time the game ends and the stat screen shows up. I have only been able to replicate this with one person on ARAM, I do not know if it affects other game modes as well.

Method of reproduction: Play a full game of Normal ARAM on Howling Abyss with only one other person in your party/queue. When at the stat scren (end game screen), click Play Again. It will take you to the Custom Games lobby.