Article V in the Schedule to this Act, and so much of Article VI in that Schedule as limits the aggregate amount which can be recovered from a carrier and his servants and agents, shall, in relation to rights or liabilities arising out of an occurrence before the day on which Article 25A in the First Schedule to the said Act of 1961 (to which those provisions are supplementary) comes into force, apply not only in relation to carriage performed by an actual carrier and to the persons mentioned in those provisions but also in relation to any other carriage governed by the Convention set out in the First Schedule to the said Act of 1932 and to any carrier under that Convention and his servants and agents.