Upon the sale of tracts of land by the state of North Dakota or any of its agencies, departments, or instrumentalities, and upon payment to the state of North Dakota or any of its agencies, departments, or instrumentalities of not less than twenty percent of the sale price of the particular tract or tracts sold, the provisions of section 57-29-01 become inoperative with respect to such lands, and the general statutory remedies to enforce and effectuate tax liens and titles again are applicable.