(a) Nothing in this chapter or in Section 17620 of the Education Code shall be interpreted to limit or prohibit the authority of a local agency to reserve or designate real property for a schoolsite.
(b) Nothing in this chapter or in Section 17620 of the Education Code shall be interpreted to limit or prohibit the ability of a local agency to mitigate the impacts of a land use approval involving, but not limited to, the planning, use, or development of real property other than on the need for school facilities.