(1) In any suit, action, or proceeding involving the validity or enforceability of any bond of a city, village, or authority or the security therefor brought after the lapse of thirty days after the issuance of such bonds has been authorized, any such bond reciting in substance that it has been authorized by the city, village, or authority to aid in financing a redevelopment project shall be conclusively deemed to have been authorized for such purpose and such redevelopment project shall be conclusively deemed to have been planned, located, and carried out in accordance with the purposes and provisions of the Community Development Law.
(2) In any suit, action, or proceeding involving the validity or enforceability of any agreement of a city, village, or authority brought after the lapse of thirty days after the agreement has been formally entered into, any such agreement reciting in substance that it has been entered into by the city, village, or authority to provide financing for an approved redevelopment project shall be conclusively deemed to have been entered into for such purpose and such project shall be conclusively deemed to have been planned, located, and carried out in accordance with the purposes and provisions of the Community Development Law.