[If] she consecrated her dough before she thoroughly mixed [it], and she redeemed it, it is obligated [in challah]. [If she consecrated the dough] after she thoroughly mixed [it] and she redeemed it, it is obligated [in challah]. [But if] she consecrated it before she thoroughly mixed [it], and the [Temple] treasurer mixed it, and later she redeemed it, it is exempt [from challah], because at the time of its [potential] liability it was exempt.