Article 50 2.

If at a given moment the person concerned does not satisfy, or no longer satisfies, the conditions laid down by all the legislations of the Member States to which he/she has been subject, the institutions applying legislation the conditions of which have been satisfied shall not take into account, when performing the calculation in accordance with Article 52(1) (a) or (b), the periods completed under the legislations the conditions of which have not been satisfied, or are no longer satisfied, where this gives rise to a lower amount of benefit.