Clarification of the "question mark" paragraph 

I know that the question mark balls are used as wild cards, but I don't understand the following. "A variety of unusual situations can arise during a game. According to an unauthenticated first-person account by a contestant (A Brush with The Chuck), a wild-card-substituted number drawn in a subsequent round is ignored; the segment is edited out of the aired version of the show". What do you mean it's ignored, I doubt anybody understand what you meant. Thanks