Possession of one co-parcener, etc., not to be possession of others
24. Where any one or more of several persons entitled to any land as co-parceners, joint tenants or tenants in common have been in possession of the entirety or more than his or their undivided share or shares of the land—
(a)for his or their own benefit; or
(b)for the benefit of any person or persons other than the person or persons entitled to the other share or shares of the land,
then, for the purposes of this Order, that possession is not to be treated as having been the possession of the last-mentioned person or persons or any of them.