The validity of the payment made by the railway exercising one of the rights of recourse under Articles 60 and 61 may not be disputed by the railway against which the right of recourse is exercised, when compensation has been determined by a court and when the latter railway duly served with notice, has been afforded an opportunity to intervene in the proceedings. The court seized of the main proceedings shall determine what time shall be allowed for such notification and for intervention in the proceedings.