12.—Where—

(a) a dismissal (or termination of employment) occurred before the commencement of this section,

(b) the employee concerned would have been entitled to redundancy payment if section 10 or 11 of this Act had been in operation on the date of dismissal or termination of employment, and

(c) the employee concerned had appealed to the Tribunal before the 1st day of January, 1979, but a decision relating to that appeal had not been made before the commencement of this section,

the Tribunal shall, as soon as practicable after the commencement of this section, make a decision relating to that appeal as if sections 10 and 11 of this Act had been in operation on the date of dismissal or termination of employment.