The faith of the State is hereby pledged that NRS 244A.669 to 244A.763, inclusive, will not be repealed, amended or modified to impair any outstanding bonds or any revenues pledged to their payment, or to impair, limit or alter the rights or powers vested in a county to acquire, finance, improve and equip a project in any way that would jeopardize the interest of any lessee, purchaser or other obligor, or to limit or alter the rights or powers vested in the county to perform any agreement made with any lessee, purchaser or other obligor, until all bonds have been discharged in full or provision for their payment and redemption has been fully made.