Notwithstanding the provisions of Kan. Stat. Ann. §§ 74-4919g to the contrary, an employee who became a member of the Kansas public employees retirement system on January 1, 1971, who was a former member of the Kansas school retirement system during the school years, 1941 to 1942, 1942 to 1943, 1949 to 1950, 1950 to 1951 and 1951 to 1952, representing five (5) years of service credit, and who forfeited such service credit by withdrawing contributions on deposit on October 28, 1969, may be allowed to repurchase such forfeited service credit within six (6) months after the effective date of this act.