28.—F88[(1) Where a person has been in occupation of a dwelling under a tenancy for a continuous period of 6 months and the condition specified in subsection (3) is satisfied, that tenancy shall, subject to Chapter 3, continue in existence for a period of unlimited duration from the date on which the first-mentioned period expires.]

(2) F89[…]

(3) The condition mentioned in subsection (1) is that no notice of termination (giving the required period of notice) has been served in respect of the tenancy before the expiry of the period of 6 months mentioned in that subsection.

(4) Despite the fact that such a notice of termination has been so served, that condition shall be regarded as satisfied if the notice is subsequently withdrawn.