Bot "incorrects" slam bid

[jyutzler]

The bot knows that 6S is to play yet switches to 6NT anyway, converting a laydown to a contract that is doomed on a heart lead.

http://www.saycbridge.com/bid/5-fe6c521611f82ed3c1d27816ae:1N,P,2H,P,2S,P,4N,P,5H,P,6S,P,6N,P,P,P