(1) An action for the determination of a claim is to be brought under the provisions governing ordinary civil proceedings. The local court where the insolvency proceedings are or were pending has exclusive jurisdiction for such action. If the subject-matter of the action does not fall under the jurisdiction of the local courts, the regional court in whose district the insolvency court is located has exclusive jurisdiction.
(2) If an action concerning such claim was pending on the date when the insolvency proceedings were opened, determination of the claim is to be initiated by the joinder of such action.