If a proceeding for enforcement under this article is commenced in a court of this state and the court determines that a proceeding to modify the determination is pending in a court of another state having jurisdiction to modify the determination under a provision of law from that state that is in substantial conformity with article 3 of this act, the enforcing court shall immediately communicate with the modifying court. The proceeding for enforcement shall continue unless the enforcing court, after consultation with the modifying court, stays or dismisses the proceeding.