9Where a judgment has been registered under this Schedule, the registering court—
(a)shall set aside the registration if, on an application made by any interested party, it is satisfied that the registration was contrary to the provisions of this Schedule ;
(b)may set aside the registration if, on an application so made, it is satisfied that the matter in dispute in the proceedings in which the judgment was given had previously been the subject of a judgment by another court or tribunal having jurisdiction in the matter.