Game autoending with a wrong win

[MortisBringerOfDoom]

I was trans, there were 3 people left, sk and poisoner. The previous night, I had transed myself with poisoner so he poisoned himself. Me and the poisoner lynched the sk, so it was me vs a poisoned poisoner who was dying the next night. Even if he wasn't poisoned I could've transed myself with him anyways so there was no possible way for the poisoner to win the game or even draw it, BUT THE GAME AUTOENDED IN A COVEN WIN. I think this is a stalemate detector bug, I asked the rest of the lobby and even the poisoner agreed with me that he shouldn't have won.