Every bond given by a guardian must 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 minor or protected minors jointly if all are interested, or of any person interested in the estate, and such bond is not void on the first recovery. If the action on the bond is in behalf of one protected minor on a bond given to more than one protected minor, the other protected minors mentioned in the bond need not be united in or made parties to such action.