Im in two games at once?

I recently disconnected from an ARAM, and when i tried to reconnect (by closing the browser and re-opening it), I couldn't. Not in the normal way though. It let me start a new game! There is no way the first ARAM finished, as I tried to reconnect immediately, and both sides had a tower and an inhib to go. According to lolnexus, I was still in the other game, however upon completing the second game, the first game did not appear in my match history, the the 2nd did.

This seems like a rare bug, but a bug none the less. Good luck tracking it down! lol