36bffc3ef5
Unlike UID revocations which are "reversible" by newer UID self-signatures, a subkey revocation should be "permanent" even if followed by a newer self-signature. The RFC is ambiguous on this, but this is the convention used by (e.g.) GnuPG. The rationale for this behaviour is available as comments within the GnuPG source. UID signatures:50c98c7ed6/g10/getkey.c (L1668-L1674)Subkey signatures:50c98c7ed6/g10/getkey.c (L1990-L1997)