Dev: refix #09285 2 : condition : go after, do to : broke
Dev: Adding $_SESSION[$LEM->sessid][$answer]=null in _validateQuestion , this ensure using $_SESSION[$LEM->sessid][$answer]
Dev: then remove the quick fix at qanda_helper only for $ia[1] (without sub question)
Dev: remove global $notanswered at each do_ function, get it by GetLastMoveResult