Hi,

First of all : I'm sorry if this is a duplicate question, I can't find a 
search button ;).

This is my example swagger file that produces the problem in json is pasted 
at the bottom of this question:

swagger: '2.0'
info:
  title: Example
  description: API
  version: "1.0.0"
# the domain of the service
host: Dont_know
# array of all schemes that your API supports
schemes:
  - https
# will be prefixed to all paths
basePath: /v1
produces:
  - application/json

paths:
  /services:
    get:
      summary: List available services.
      description: This request lists all services.
      responses:
        200:
          description: An array containing the services
          schema:
            $ref: "#/definitions/ServiceBase"

  /services/{service_id}:
    get:
      summary: Get details of this specific service
      description: Returns specific information about this service

      parameters:
        - name: service_id
          in: path
          required: true
          description: The id of the service
          type: string
      
      responses:
        200:
          description: A more detailed description of a specific service.
          schema:
            $ref: "#/definitions/ServicePlus"

definitions:
  
  ServiceBase:
    type: object
    properties:
      id:
        type: string
        description: The id of the service.
      display_name:
        type: string
        description: Name of the service
  
  ServicePlus:
    type: array
    items:
      type: object
      allOf:
        - $ref: "#/definitions/ServiceBase"
        - properties:
            extra_info:
              type: string
              description: Extra information concerning this service.
        
          
I'm trying to do some form of subclassing by having a ServiceBase model and 
a ServicePlus model which "inherits" the properties off the ServiceBase and 
extends it with another property. From what I've read online this should 
work, and the editor does not error. However when opening the swagger file 
in the json the GET request for Services works as expected, but the for the 
specific service it shows 
Model:

ServicePlus [
Inline Model 1
]
Inline Model 1 {}

or when looking at the Example Value I just get an empty list:

[ {} ]


This probably means I have done something wrong, or something else is going 
amiss. Is there a fix for this behaviour or an alternative for allOf that 
will suit my needs?




Swagger file in json.

{
  "swagger" : "2.0",
  "info" : {
    "description" : "API",
    "version" : "1.0.0",
    "title" : "Example"
  },
  "host" : "Dont_know",
  "basePath" : "/v1",
  "schemes" : [ "https" ],
  "produces" : [ "application/json" ],
  "paths" : {
    "/services" : {
      "get" : {
        "summary" : "List available services.",
        "description" : "This request lists all services.",
        "parameters" : [ ],
        "responses" : {
          "200" : {
            "description" : "An array containing the services",
            "schema" : {
              "$ref" : "#/definitions/ServiceBase"
            }
          }
        }
      }
    },
    "/services/{service_id}" : {
      "get" : {
        "summary" : "Get details of this specific service",
        "description" : "Returns specific information about this service",
        "parameters" : [ {
          "name" : "service_id",
          "in" : "path",
          "description" : "The id of the service",
          "required" : true,
          "type" : "string"
        } ],
        "responses" : {
          "200" : {
            "description" : "A more detailed description of a specific 
service.",
            "schema" : {
              "$ref" : "#/definitions/ServicePlus"
            }
          }
        }
      }
    }
  },
  "definitions" : {
    "ServiceBase" : {
      "type" : "object",
      "properties" : {
        "id" : {
          "type" : "string",
          "description" : "The id of the service."
        },
        "display_name" : {
          "type" : "string",
          "description" : "Name of the service"
        }
      }
    },
    "ServicePlus" : {
      "type" : "array",
      "items" : {
        "type" : "object",
        "properties" : { }
      }
    }
  }
}

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