(a) A provision of this chapter concerning the sale price of a public security or the maximum rate of interest that a public security may bear applies to any public security without regard to a contrary provision in another law or a charter.
(b) A provision of this chapter concerning the sale price of a public security does not apply to a public security whose maximum rate of interest or maximum net effective interest rate is, at the time the public security is issued, specifically set by the constitution of this state.