The provisions of subsections (a) and (b) concerning small business related securities shall not apply with respect to a particular person, trust, corporation, partnership, association, business trust, or business entity or class thereof in any State that, prior to the expiration of 7 years after September 23, 1994, enacts a statute that specifically refers to this section and either prohibits or provides for a more limited authority to purchase, hold, or invest in such small business related securities by any person, trust, corporation, partnership, association, business trust, or business entity or class thereof than is provided in this section. The enactment by any State of any statute of the type described in the preceding sentence shall not affect the validity of any contractual commitment to purchase, hold, or invest that was made prior to such enactment, and shall not require the sale or other disposition of any small business related securities acquired prior to the date of such enactment.