Schema array type with anyOf and discriminator not validate items in the array

[apiotrowski]

I am writing api which define response, and one of the property in the response is "filters" property (array type), which has reference to property which use anyOf functionality with discriminator with defined mapping.

Unfortunately my response with array values it is not validate properly. During validation it's validate array using schema choosen by discriminator, but choose constantly first schema.

My expected behaviour is: If i define discriminator property with mapping, it should use schema defined by discriminator.

Example:

...
"filters": {
   "type": "array",
   "items": {
         "$ref": "#/components/schemas/SearchFilter"
   }
}
...

when SearchFilter:

"SearchFilter": {
        "discriminator": {
          "propertyName": "type",
          "mapping": {
            "QUERY": "#/components/schemas/QuerySearchFilter",
            "PRICE": "#/components/schemas/PriceSearchFilter",
            ...            
          }
        },
        "anyOf": [
          {
            "$ref": "#/components/schemas/QuerySearchFilter"
          },
          {
            "$ref": "#/components/schemas/PriceSearchFilter"
          },
          ...          
        ]
      },
     "SearchFilterType": {
        "type": "string",
        "enum": [
          "QUERY",
          "PRICE",
          "CATEGORY",
          "COLOR",
          ...
        ],        
      }

and QuerySearchFilter and PriceSearchFilter are:

"QuerySearchFilter": {
        "type": "object",
        "required": [
          "type"
        ],       
        "properties": {
          "type": {
            "$ref": "#/components/schemas/SearchFilterType"          
          }
        }
      },
"PriceSearchFilter": {
        "type": "object",
        "required": [
          "type",
          "minPrice",
          "maxPrice",
          "discount"
        ],       
        "properties": {
          "type": {
            "$ref": "#/components/schemas/SearchFilterType"
          },
          "minPrice": {
            "$ref": "product.json#/components/schemas/Decimal"
          },
          "maxPrice": {
            "$ref": "product.json#/components/schemas/Decimal"
          },
          "discount": {
            "type": "boolean"
          }
        }
      }

for example my response contains response:

...
"filters": [
  [
       "type": "QUERY
   ],
   [
       "type": "PRICE",
       "minPrice": "10.00"
       "maxPrice": "100.00",
       "discount": true
    ]
]
...

Is anybody could help me, did I deine something in wrong way or is a bug in the validator. I think there is an issue in the validator.