All lands taken in exchange under 77-2-211 through 77-2-216 for lands granted by the United States to the state of Montana prior to July 1, 1931, shall be subject to the same restrictions, limitations, and provisions as the lands granted by the United States are now subject to. All lands granted by the state in carrying out such exchanges shall thereafter be free from the restrictions and limitations provided by The Enabling Act of the state of Montana or the other grant from the United States.
§ 77-2-217, MCA