Every bond given by a guardian shall be filed and preserved in the office of the clerk of the district court of the county in which the guardianship proceeding is conducted. In case of the breach of any condition of such bond, an action may be maintained in behalf of the protected person or protected persons jointly if all are interested, or of any person interested in the estate, and such bond shall not be void on the first recovery. If the action on the bond is in behalf of one protected person on a bond given to more than one protected person, the other protected persons mentioned in the bond need not be united in or made parties to such action. As used in this section, ‘protected person’ includes a protected minor.