Base Model properties are not resolved when extended

[hassansin]

In the example spec, after extending Pet in Cat object, Pet properties are not resolved. Instead shows a file reference:

{
  "swagger":"2.0",
  "info":{    
  },
  "host":"localhost:9000",
  "schemes":[
    "http"
  ],
  "basePath":"/2.0",
  "paths":{
    "/":{
      "get":{
        "responses":{
          "200":{
            "description":"Pets",
            "schema":{
              "$ref":"#/definitions/Pet"
            }
          }
        },
        "parameters":[          

        ]
      }
    }
  },
  "definitions":{    
    "Cat":{
      "allOf": [
        {
          "$ref": "#/definitions/Pet"
        }, 
        {
          "type": "object",
          "properties":{
            "size":{
              "type": "number"
            }
          }
        }
      ]
    },
    "Pet":{  
      "type": "object",    
      "properties":{       
        "color":{
          "$ref":"#/definitions/Color"
        }
      }
    },
    "Color":{
      "type": "string"
    }
  }
}

It works if Cat is removed from definitions. Is something wrong with my definition? Thanks

[dsem]

This appears to be resolved in the latest master. See #1792.