Where a legal estate (not being settled land) is beneficially limited to or held in trust for any persons as joint tenants, the same shall be held in trust, in like manner as if the persons beneficially entitled were tenants in common, but not so as to sever their joint tenancy in equity.
Without prejudice to the right of a joint tenant to release his interest to the other joint tenants no severance of a mortgage term or trust estate, so as to create a tenancy in common, shall be permissible.