14.—(1) The fee simple estate into which a leasehold estate is enlarged by virtue of section 13(2) is for all purposes (except as provided in section 16(1)) a graft on the leasehold estate and is subject to any rights or equities arising from its being such a graft.
(2) Without prejudice to the generality of subsection (1), that subsection applies to rights and equities which had been created or had come into existence in relation to a superior estate, and which bound the leasehold estate, notwithstanding the extinguishment of the superior estate.
(3) Any provision of a will in respect of such a leasehold estate operates instead on the fee simple.