Should a member discontinue city-service except by death or retirement, he or she shall be paid such part of the amount of the accumulated deductions standing to the credit of his or her individual account in the annuity savings fund as he or she shall demand. Such board, however, in its discretion, may withhold for not more than one year after a member last rendered city-service all or part of his or her accumulated deductions, if after a previous discontinuance of service he or she withdrew from the annuity savings fund all or part of the amount of his or her accumulated deductions and failed to redeposit such withdrawn amount in such fund.