The State of Alaska pledges to and agrees with the holders of any obligations issued under this chapter, and with those parties who may enter into contracts with the authority under this chapter, that the state will not limit or alter the rights vested in the authority by this chapter with respect to outstanding obligations until those obligations, together with the interest on them, are fully met and discharged and those contracts are fully performed on the part of the authority. However, nothing in this section precludes such a limitation or alteration if adequate provision is made by law for the protection of the holders of those obligations of the authority or persons entering into those contracts with the authority.