Where judgment is given by, or entered in, a court for payment of:
(a) a child support debt; or
(b) an amount that includes a child support debt;
then:
(c) the debt shall not be taken, for the purposes of subsection 67(1), to have ceased to be due and payable merely because of the giving or entering of the judgment; and
(d) if the judgment debt carries interest, the amount that would, but for this paragraph, be payable under that subsection in relation to the debt shall, by force of this paragraph, be reduced by:
(i) in a case to which paragraph (a) applies--the amount of the interest; or
(ii) in a case to which paragraph (b) applies--an amount that bears the same proportion to the amount of the interest as the amount of the debt bears to the amount of the judgment debt.