Custom JSON Schema content-type is not valid

[pksunkara]

Given the following blueprint:

# GET /

+ Response 200 (application/json)
    + Attributes
        + text (string) - My string

    + Schema

            { "id": "https://example.org/test" }

the generated messageBodySchemas contentType is application/json.

Expected

The contentType should be application/schema+json.