Duplicate file methods wrongly use query_ary

[elifoster]

  "query": {
    "pages": {
      "17975": {
        "pageid": 17975,
        "ns": 6,
        "title": "File:2014-08-06 22.15.48.png"
      },
      "18029": {
        "pageid": 18029,
        "ns": 6,
        "title": "File:2014-08-07 09.56.30.png"
      },
      "18030": {
        "pageid": 18030,
        "ns": 6,
        "title": "File:2014-08-07 09.15.23.png"
      },
      "18031": {
        "pageid": 18031,
        "ns": 6,
        "title": "File:2014-08-07 09.26.20.png"
      },
      "18032": {
        "pageid": 18032,
        "ns": 6,
        "title": "File:2014-08-07 09.16.07.png"
      },
      "113877": {
        "pageid": 113877,
        "ns": 6,
        "title": "File:2016-03-12 00.39.16.png"
      },
      "113879": {
        "pageid": 113879,
        "ns": 6,
        "title": "File:2016-03-12 00.47.17.png"
      },
      "113880": {
        "pageid": 113880,
        "ns": 6,
        "title": "File:2016-03-12 00.55.27.png"
      },
      "113883": {
        "pageid": 113883,
        "ns": 6,
        "title": "File:2016-03-12 01.06.24.png"
      },
      "113886": {
        "pageid": 113886,
        "ns": 6,
        "title": "File:2016-03-12 01.10.42.png"
      }
    }
  }
}

is an example response, but query_ary assumes the query result is simply an array of objects, not a hash of objects.

This problem is present for all duplicate file property query methods.