19.—(1) This paragraph applies where—
(a)a person was entitled to a retirement pension (other than one which was reduced under regulation D13),
(b)after becoming so entitled he entered further local government employment,
(c)he dies in the further employment, and
(d)if he had then ceased to be employed (otherwise than by reason of his death) he would have been entitled to give notice under paragraph 10.
(2) Where this paragraph applies—
(a)any benefits payable in respect of the person (except any surviving spouse’s or children’s short-term pension) are to be calculated, and
(b)any surrender of part of a retirement pension has effect,
as if immediately before his death he had become entitled to benefits under Part II of this Schedule or, if it is more favourable to the person entitled to receive the benefits in question, Part III of this Schedule.