🐛 Fix handling $ref to request body.

Author: rafalkrupinski

src/lapidary/render/model/openapi_conv.py

@@ -159,6 +159,7 @@ def process_path(
             self.process_operation(operation, stack.push(method), common_params)
         self._path_progress(json_pointer.decode_json_pointer(stack.top()))
 
+    @resolve_ref
     def process_request_body(self, value: openapi.RequestBody, stack: Stack) -> python.MimeMap:
         # TODO handle required
         return self.process_content(value.content, stack.push('content'))