title: Materialize stepper back button issue on double click
body: <p>I am using Materialize Stepper in my project to display multi forms, everything is working fine and i noticed that when double click on back button all the content become blank and we have to refresh the page.</p>
  <pre><code>'''https://codepen.io/flist/pen/mqXemY'''
  </code></pre>
  <p>Please check the above codepen page and when you click next button and from second step if you tried to double click on back button all content will be washout.</p>
  <p>If anyone can check and suggest some solution that will be great help.</p>