title: how to avoid automatic sorting in multiple select in angularjs
body: <p>I have a importing json data to the multiple select. But I want to avoid the auto sorting in this multiple select. 
  Here is my json data </p>
  
  <pre><code>{
  "1": "१ ",
  "2": "२ ",
  "3": "३",
  "4": "४ ",
  "5": "५ ",
  "6": "६ ",
  "7": "७ ",
  "8": "८ ",
  "9": "९ ",
  "10": "१० ",
  "11": "११",
  "12": "१२ ",
  "13": "१३ ",
  "14": "१४",
  "15": "१५",
  "16": "१६ ",
  "17": "१७ ",
  "18": "१८",
  "19": "१९ ",
  "20": "२०",
  "21": "२१",
  "22": "२२ ",
  "23": "२३",
  "24": "२४ ",
  "25": "२५ ",
  "26": "२६ ",
  "27": "२७",
  "28": "२८ ",
  "29": "२९ ",
  "30": "३०"
  }
  </code></pre>
  
  <p>and this is my html code </p>
  
  <pre><code> &lt;select ng-model= "wards" aria-controls="example1"
           class="form-control form-control-sm multiple=""
           ng-options="key as value for (key, value) in optionDataWards"&gt;
   &lt;/select&gt;
  </code></pre>
  
  <p>is there any way to do this?</p>