(1) Rule 25.10 does not apply if:
(a) 2 or more respondents are alleged to be jointly, or jointly and severally, liable to the applicant for a debt or damages; and
(b) rights of contribution or indemnity appear to exist between the respondents.
(2) However, rule 25.10 applies if:
(a) for an offer made by the applicant--the offer:
(i) is made to all respondents; and
(ii) is an offer to compromise the claim against all of them; or
(b) for an offer made to the applicant:
(i) the offer is to compromise the claim against all respondents; and
(ii) if the offer is made by 2 or more respondents--those respondents offer to be jointly, or jointly and severally, liable to the applicant for the whole amount of the offer.