(2) Each application to purchase submersible lands must, in addition to all other requirements, contain the applicant’s statement that application is made with knowledge of the character of the land applied for and the title of the state thereto, and the waiver of the applicant of all claims upon the state for the return of the purchase price of the lands in the event that the lands, or any part thereof, do not belong to the state. [1967 c.421 §53 (enacted in lieu of 273.030); 1969 c.594 §20]