Any action brought by the State of Louisiana, private corporations, partnerships or persons, to set aside or annul a homestead entry of previously adjudicated lands or patent issued thereon under the provisions of Act 235 of 1938, now incorporated in Title 41, Sections 541 to 551, both inclusive, of the Louisiana Revised Statutes of 1950, where the sole reason for the attack upon such entry or upon such patent is that the land covered by the entry is not susceptible of serious and substantial cultivation, and where such entry was allowed or such patent issued prior to the passage of this Section, shall be prescribed by the lapse of six months from and after July 26, 1950.
La. R.S. § 41:552