4.—(1) Article 40—
(a)does not apply to an existing instrument or statutory provision in so far as it contains a disposition of property, and
(b)does not apply to any public general Act or Measure in its application to any disposition of property in an existing instrument or statutory provision.
(2) Sections 18 and 19 of the Adoption Act (Northern Ireland) 1967(1), and provisions containing references to those sections shall continue to apply in relation to dispositions of property effected by existing instruments notwithstanding the repeal of those sections and such provisions.
(3) Article 46 shall apply in relation to this paragraph as if it were contained in Part V.