(2) Notwithstanding anything in this Act, any person who, immediately before the commencement of this Act was assisting the Commission by virtue of an appointment under section 18(1) and was a contributor to the Government Superannuation Fund under Part 2 of the Government Superannuation Fund Act 1956 shall be deemed, for the purposes of the Government Superannuation Fund Act 1956, to be employed in the Government service so long as that person continues to be an officer or employee of the Commission; and that Act shall apply to the person in all respects as if service as such an officer or employee were Government service. For the purposes of the Government Superannuation Fund Act 1956, the controlling authority in relation to any such person shall be the Commission.