8. For section 5(2) (limited duration tenancies), substitute—
“(2) Where—
(a)at any time before the expiry of the term of a short limited duration tenancy, the landlord and tenant agree in writing to convert the tenancy to a limited duration tenancy; or
(b)the tenant remains in occupation of the land after the expiry of the term of a short limited duration tenancy of 5 years (including such a term fixed by virtue of section 4(2) or (3)) with the consent of the landlord,
the tenancy has effect as if it were for a term of 10 years commencing at the start of the term of the short limited duration tenancy, and the tenancy is, by virtue of this subsection, a limited duration tenancy.”.