title: Tooltip with Sortable gives unexpected result
body: <p>I'm working with bootstrap jquery and <a href="https://github.com/SortableJS/Sortable" rel="nofollow noreferrer">Sortable</a>. I'm trying to do a drag from a box to another one with a clone from the first one. The problem is that I have a tooltip and after my drag the tooltip does something weird.</p>
  
  <p>try to drag <code>here a</code> to the second list then hover your mouse on <code>a</code> and you will see the problem</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>$('[data-toggle="tooltip"]').tooltip();
  Sortable.create(foo, {
    group: {
      name : 'foo',
      pull : 'clone',
    }
  });
  
  Sortable.create(bar, {
    group: 'foo',
  });</code></pre>
  <pre class="snippet-code-css lang-css prettyprint-override"><code>ul {
    list-style: none;
    padding: 0;
    border : 1px solid blue;
    min-height : 20px;
  }
  
  li {
    background: #eee;
    margin: 1px;
    padding: 5px 10px;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;head&gt;
    &lt;meta charset="utf-8"&gt;
    &lt;title&gt;Sortable: `put: []` demo&lt;/title&gt;
  &lt;script src="https://code.jquery.com/jquery.min.js"&gt;&lt;/script&gt;
  &lt;link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" type="text/css" /&gt;
  &lt;script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"&gt;&lt;/script&gt;
  
    &lt;!-- Sortable.js --&gt;
    &lt;script src="https://raw.githack.com/SortableJS/Sortable/master/Sortable.js"&gt;&lt;/script&gt;
  
    
  &lt;/head&gt;
  &lt;body&gt;
    &lt;br&gt;
    &lt;ul id="foo"&gt;
      &lt;li&gt;here &lt;span data-toggle="tooltip" data-placement="right" title="test"&gt;a&lt;/span&gt;&lt;/li&gt;
    &lt;/ul&gt;
  
    &lt;ul id="bar"&gt;
    &lt;/ul&gt;
  
  
    
  &lt;/body&gt;
  &lt;/html&gt;</code></pre>
  </div>
  </div>
  </p>