I've have two games now in which the following has happened:
1) Text appears saying a player wants to concede the game and immediately after, a message says that AI has taken over for that player
2) The game continues and when it ends, that players appears to get 40 favor points
That sounds like bugs to me because:
A ) When a player chooses the concede option, he should not be allowed to quit until all players on that team has also voted to concede the game. The current wording, however, do seem to indicate that you will quit immediately, which also seems wrong.
B ) If you manage to quit early anyway, shouldn't you get 0 favor points?
(Also, bonus bug: A few (!) patches ago, the patch log said that instead of an AI reading as "ping 0" it should say "AI". Well it still doesn't.)