The CPR 52.30 application seeks to reopen the PTA refusal against Kelly's interim injunction decision. It does not seek to relitigate the substantive Chancery claims. Kelly para 50: 'It remains open to the claimants to bring a substantive claim.' Kelly para 31: 'Not for the court today to make findings of fact.' Dove treated interim as final. CPR 52.5 does not bar CPR 52.30 (separate jurisdiction). R2/R3 were not even parties to the Kelly hearing.