Paul Mach

The spec says there should be no properties next to `$ref`. But, in my opinion, extensions are an exception. The core technical problem is kin-openapi is not capturing anything next...

This issue is not fully fixed, it was a 3 parter. 1. have kin-openapi read in the extensions next to $ref https://github.com/getkin/kin-openapi/pull/901 2. upgrade the kin-openapi version used here https://github.com/oapi-codegen/oapi-codegen/pull/1689...