title: Select2 on Clone Element not working
body: <p>I have select with multiple select like this</p>
  
  <pre><code>&lt;select class="js-example-basic-multiple" multiple="multiple"  style="width:100%"&gt;
      &lt;option value="月曜日"&gt;月曜日&lt;/option&gt;
      &lt;option value="火曜日"&gt;火曜日&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>And I initialize it like this </p>
  
  <pre><code>$(".js-example-basic-multiple").select2();
  </code></pre>
  
  <p>It's working perfectly , but the problem when I want to clone it and append to other.</p>
  
  <pre><code>var clone_temp = $(".js-example-basic-multiple").clone();
    $("#some_wrapper").append( clone_temp  );
  </code></pre>
  
  <p>It's only work for first element ,but for clone element not working.
  Please help!!!</p>