In section 38(1) of the [1970 c. 31.] Administration of Justice Act 1970 (county court jurisdiction to hear and determine certain actions for possession of mortgaged land notwithstanding that a claim for payment by the mortgagor of the amount owing in respect of the mortgage is also made in the action and that by reason of the amount claimed the last-mentioned claim is not within the jurisdiction of a county court) for the words "for payment by the mortgagor of the amount owing in respect of the mortgage is also made in the action" there shall be substituted the words " is also made in the action for payment by the mortgagor of the amount owing in respect of the mortgage or for payment of that amount by any person who guaranteed the debt secured by the mortgage ".