Say a player declared several attackers for a challenge. The defending player, after defenders are declared, takes control of one of those attacking characters. Does that character still count it's strength in the challenge it was committed to, even though the control has been exchanged?

Its in the faq

(3.28) Changing Control Mid-Challenge
If a character participating in a challenge
changes control during that challenge, that
character is removed from the challenge. If
said character was the only character in the
challenge, the challenge ends.

Thanks! Always the last place I expect to find rulings, lol.