Context broken on flattening #261

{
  "@context": {
    "@vocab": "http://myproject.com/definitions/v1/types#",
    "xsd": "http://www.w3.org/2001/XMLSchema#",
    "state": {
      "@id": "partnershipState"
    },
    "type": {
      "@id": "partnershipType"
    },
    "issuerId": {
      "@id": "issuer"
    },
    "partnerId": {
      "@id": "partner"
    }
  }
}

BASE = "http://myproject.com/definitions/v1/models/";
JsonLdOptions jsonLdOpts = new JsonLdOptions();
String type = "partnerships";
jsonLdOpts.setProcessingMode(JsonLdOptions.JSON_LD_1_1);
Object flattened = JsonLdProcessor.flatten(jsonObject, BASE + type, jsonLdOpts);

 "@context" : {
    "@vocab" : "http://myproject.com/definitions/v1/types#",
    "xsd" : "http://www.w3.org/2001/XMLSchema#",
    "state" : "partnerId:shipState",
    "type" : "partnerId:shipType",
    "issuerId" : "http://myproject.com/definitions/v1/types#issuer",
    "partnerId" : "http://myproject.com/definitions/v1/types#partner"
  }