Schema or example in message x-www-form-urlencoded body


I am having the situation, where I have to make raml for already exsisting API. There is one place where POST request should be with application/x-www-form-urlencoded as content-type header. The post data is an simple json object. I would like to have ability to simply add JSON schema, which would describe body of the request.

It seems that adding example/schema tag after application/x-www-form-urlencoded is valid (in the RAML editor), but the RAML console does not show neither example nor the schema. Is this is a bug or should I differently specify the request?