title: selectize.js typeahead character (yellow) color is not resetting
body: <p>I tried using the selectize.js for one of my component and i am facing an issue. Can someone help in pointing what is wrong?</p>
  
  <p><a href="https://i.stack.imgur.com/RxKPU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RxKPU.png" alt="enter image description here"></a></p>
  
  <p>I just typed first few character of all the option and remove those character, but the yellow highlight is not resetting from previous type. The appended span to the div with option class tag is not removed.</p>
  
  <p><strong>JSP</strong>  </p>
  
  <pre><code>&lt;select id="select-state" multiple&gt;
      &lt;option&gt;Mustard&lt;/option&gt;
      &lt;option&gt;Ketchup&lt;/option&gt;
      &lt;option&gt;Relish&lt;/option&gt;
  &lt;/select&gt;  
  </code></pre>
  
  <p><strong>script</strong></p>
  
  <pre><code>&lt;script&gt;
      $(function() {
          $('#select-state').selectize({
              plugins: ['remove_button'],
          });
      });
  &lt;/script&gt;  
  </code></pre>
  
  <p>Version i am using for selectize.js is 0.12.3.</p>
  
  <p><a href="https://cdnjs.cloudflare.com/ajax/libs/selectize.js/0.12.3/css/selectize.bootstrap2.min.css" rel="nofollow noreferrer">https://cdnjs.cloudflare.com/ajax/libs/selectize.js/0.12.3/css/selectize.bootstrap2.min.css</a>  </p>
  
  <p><a href="https://cdnjs.cloudflare.com/ajax/libs/selectize.js/0.12.3/js/standalone/selectize.min.js" rel="nofollow noreferrer">https://cdnjs.cloudflare.com/ajax/libs/selectize.js/0.12.3/js/standalone/selectize.min.js</a></p>
  
  <p><strong>jsfiddle:</strong>
  <a href="http://jsfiddle.net/wh6Nx/308/" rel="nofollow noreferrer">http://jsfiddle.net/wh6Nx/308/</a></p>
  
  <p><strong>Update</strong></p>
  
  <p>As the issue which i mentioned has already be added part of 0.12.4 milestone. May be future release won't have this issue.</p>