Disconnecto from spectate says my leave% will go up

[sprkng]

Connected to spectate a friend yesterday, after a few minutes I selected disconnect from the menu (game wasn't over) and I got a popup saying that my leave% would go up if I disconnected now. Checked my stats and I did of course not get a disconnect but I still think it's a bit confusing.

Using Linux if that matters.

[[E]Evil_Andrex]

Known bug, happens with nearly all games that don't actually give you a leave.