If a proceeding for enforcement under AS 25.30.400 - 25.30.590 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 provisions substantially similar to AS 25.30.400 - 25.30.590, the enforcing court shall immediately communicate with the modifying court. The proceeding for enforcement continues unless the enforcing court, after consultation with the modifying court, stays or dismisses the proceeding.