Board API gameState response has no winner field the first time it is received

[mcaap]

Board API: When a game finishes in mate, the responses received from server are as follows:

1. "type":"gameState"..."wdraw":false,"bdraw":false,"status":"mate"} (note no winner field)
2. {"type":"gameFinish",...
3. "type":"gameState"... ,"status":"mate","winner":"black"} (this time there is both status and winner fields!)

Ideally, in the first case itself, the winner field should have been received, since most Clients/GUIs will probably stop the game since "status" is already mate.. but unfortunately there is no winner field

[ornicar]

Well usually in case of checkmate, the player who made the last move wins.

[ornicar]

But yeah that's not great, there are 2 almost similar events. Trying to solve that without breaking existing bots.

[ornicar]

fixed by lichess-org/lila@d9a8f7a