11U.K.The amendments made by paragraph 7 do not have effect in relation to an instrument giving effect to a contract entered into on or before 16 March 2005, unless—
(a)the instrument is made in consequence of the exercise after that date of any option, right of pre-emption or similar right, or
(b)the instrument transfers the property in question to, or vests it in, a person other than the purchaser under the contract, because of an assignment (or assignation) or further contract made after that date.