The general assembly expressly reserves its plenary legislative authority relating to the university of Colorado university hospital, including but not limited to the authority to enact laws relating thereto. Nothing in this part 5 or part 6 of this article or in section 11 of article II of the state constitution or in section 10 of article I of the federal constitution, relating to impairment of the obligation of contract, shall be construed to limit said legislative authority. Any contract or other obligation of the authority is expressly subject to the provisions of this section, and the parties to such contract or obligation shall not assert such contract or obligation as a bar to the general assembly's exercise of legislative authority relating to the university of Colorado university hospital.