A medical facility or other employing unit shall cease to be a privatized former public employer and its employees shall cease to be considered privatized former public employees under this chapter upon the sale of the operations of the medical facility or employing unit to another employer or the sale of the medical facility or employing unit to another employer. The privatized former public employees shall be entitled to benefits accrued under this chapter to the date of the sale, but shall not accrue additional benefits after the date of the sale.