20Discharge of exemption order
Where, by virtue of a decision of the Court under section 17(1)(a) above, section 9 above takes effect, that section, so far as it affects the validity of any term or condition of a contract or agreement for or relating to the sale of any goods, or the effect of notice of any term or condition so relating, applies to contracts and agreements made and notices given before as well as after that section takes effect, and—
(a)for the purposes of the jurisdiction of any court to grant an injunction in proceedings pending at the time when section 9 takes such effect, that section shall be treated as if it had taken effect before the cause of action arose; and
(b)any injunction granted or undertaking given before section 9 takes such effect in or for the purpose of any proceedings shall be of no effect in so far as it would operate to require compliance with any term or condition which is void, or notice of which is invalidated, by virtue of that section.