Steps to reproduce:
Make an API call using event.get with
"select_acknowledges": "extend"

Result:
API answers with JSON
...

            "acknowledges": [
                {
                    "acknowledgeid": "1",
                    "userid": "1",
                    "eventid": "12345",
                    "clock": "1234567890",
                    "message": "some ack message",
                    "alias": "jdoe"
                }
            ],

...

• Expected Result:*
  API answers with JSON
  ...

              "acknowledges": [
                  {
                      "acknowledgeid": "1",
                      "userid": "1",
                      "eventid": "12345",
                      "clock": "1234567890",
                      "message": "some ack message",
                      "alias": "jdoe",
                      "name": "John",
                      "surname": "Doe",
                  }
              ],
  

  ...