This is probably a determination best ignored, from the judge who brought us Sala. The headnote reads:
1. An appeal under s 82(1)(c) is an appeal against revocation of the basis upon which the leave referred to in s 82(2)(c) was granted.
2. The only allowable ground under s 84(3)(a) is by reference to the Refugee Convention, and by s 86(2)(a) that matter must therefore be determined in all cases.
3. Where s 72(10) applies, however, the appeal must be dismissed even if the ground is made out.
The determination basically consists of an obscure legal discussion in which even I could find no interest and concludes, I think, that an appeal on refugee grounds against revocation of refugee status should be dismissed if the appellant is excluded from the protection of the refugee convention. The case is Essa (Revocation of protection status appeals)  UKUT 244 (IAC).