In accordance with rules adopted by the governor or adjutant general, an accused who has been sentenced by a court-martial may be required to take leave pending completion of action under this part if the sentence includes an unsuspended dismissal or an unsuspended dishonorable or bad-conduct discharge. The accused may be required to begin the leave on the date of the entry of judgment under section 124B-105 or at any time after that date, and the leave may be continued until the date on which action under this part is completed or may be terminated at any earlier time.