Any county employe who, on or after July 1, 1982 is employed by the county for a period of one month and who, on or immediately prior to July 1, 1982 was an employe of a public school district, shall have credited to the employe's employment record, for retirement benefits, all the time spent by such employe in the school district: Provided, however, That (i) the employe contribute to the fund the total amount of employe accumulated deductions withdrawn from the Public School Employees' Retirement Fund, (ii) that the board of the Public School Employees' Retirement Fund transfer over within thirty days of receipt of a written request from the county the total amount of employer contributions and the accumulated interest on such contribution and (iii) that the employe start work with the county within thirty days after leaving employment with the public school district. This section shall apply only where the transfer of employment from the public school district to the county was not voluntary on the part of the employe.