(a) a person is receiving a pension PP (single); and
(b) the person became qualified for the pension because the person's former partner died; and
(c) the partner's period of Australian working life residence (immediately before the partner's death) is longer than the period that would now be the person's period of Australian working life residence under section 17;
the person's period of Australian working life residence is to be equal to
the partner's period of Australian working life residence (immediately
before the partner's death).