(1) Unless the court otherwise orders—
(a) if the court orders that a person be included as a party in the proceeding—the proceeding continues as if the person were an original party to the proceeding; and
(b) if the court orders that a person be substituted for a party or former party in the proceeding—everything previously done in the proceeding has the same effect in relation to the new party as it had in relation to the previous party.
Note Pt 6.2 (Applications in proceedings) applies to an application for an order otherwise ordering.
(2) If the previous party was a defendant, subrule (1) (b) does not apply to the following:
(a) the filing of a notice of intention to respond or defence by the previous party;
(b) an admission made by the previous party;
(c) an order for costs in favour of, or against, the previous party.