Sec. 2. If:
(1) a marriage is void because either of the parties to the marriage has a living husband or wife; and
(2) either of the parties to the marriage did not reasonably believe that either of the parties had a living husband or wife;
the children of the marriage shall be treated as if the children are children of a marriage that is not void if the children were conceived before the discovery that a party to the marriage had a living husband or wife.