1211. Discharge of pre-existing contractual obligations.

Where any notice of a tenant's1 desire to have the freehold or an extended lease of a house2 and premises3 given by a tenant entitled to acquire the freehold or an extended lease has effect, then, without prejudice to the general law as to frustration of contracts4, the landlord5 and all other persons are discharged from the further performance, so far as relates to the disposal in any manner of the landlord's interest in the house and premises or any part thereof, of any contract previously entered into and not providing for the eventuality of such a notice, including