title: WooCommerce Membership calculates taxes of all products twice (Only with an active membership)
body: <p>I have a problem with the calculation of the product tax after binding a membership to a user. </p>
  
  <p><strong>The product price (in the frontend) without a membership:</strong>
  1000$ + 19% tax = 1190$</p>
  
  <p><strong>The product price (in the frontend) with a membership:</strong>
  1190$ + 19% tax = 1416$</p>
  
  <p>It looks like the price receives the tax twice. 
  This problem happens only in the <strong>frontend</strong>. In the backend, everything looks fine.</p>
  
  <p>I am using the following Plugins:</p>
  
  <ul>
  <li>WooCommerce  – 2.6.6</li>
  <li>WooCommerce Subscriptions – 2.0.20 </li>
  <li>WooCommerce Memberships – 1.7.2</li>
  </ul>
  
  <p>Also, there are no custom functions that are causing this plugin.</p>
  
  <p>Does anyone have the same issue and maybe a solution for that? 
  If you need some more information, please let me know.</p>
  
  <p>Cheers
  Jannis</p>