It is hereby declared
—
(a) that
the entry of the Bank upon, or the use, enjoyment or occupation by the Bank
of, any land on or after the appointed day as tenant, sub-tenant or licensee
of or under an existing bank or of or under E.S.A. Savings Bank does not
constitute an assignment, transfer, underletting, devolution, parting with
possession or other disposition of that land for the purpose of any provision
relating to assignment, transfer, underletting, devolution, parting with
possession or other disposition contained in any instrument in existence on
the appointed day and relating to that land; and
(b) that
no transfer or vesting effected by virtue of this Act invalidates or
discharges any contract or security.