Notwithstanding section 38-291, paragraph 7, if a person serving in an elective office of this state other than the governor, or a political subdivision of this state receives orders for active military duty and the period of active duty is projected to continue for at least three months but less than the remainder of the officer’s term of office, the office may be temporarily vacated. A temporary replacement may be appointed in the same manner as prescribed by law for a permanent replacement. The temporary appointee shall serve until the officer returns from active military duty or until the expiration of the officer’s term of office, whichever occurs first.