If:
(a) after a person has filed a notice of opposition, the right or interest on which the person relied to file the notice of opposition becomes vested in another person; and
(b) the other person:
(i) notifies the Registrar or the court (as the case may be) in writing that the right or interest is vested in him or her; and
(ii) does not withdraw the opposition;
the opposition is to proceed as if the notice of opposition had been filed in that other person's name.