title: Modify Quantity of certain products in woocommerce emails
body: <p>I need to make it so that the quantity in order emails show up as double for specific products only. Ive modified email-order-items.php as follows (not working):</p>
  
  <p>Added on line 28: <code>$product_id = $product-&gt;get_product_id();</code>
  Added on line 79: </p>
  
  <pre><code>if( $product_id == 6960) {
      $qty_display = '&lt;del&gt;' . esc_html( $qty ) . '&lt;/del&gt; &lt;ins&gt;' . esc_html( $qty * 2 ) . '&lt;/ins&gt;';
  }
  </code></pre>
  
  <p><a href="https://github.com/woocommerce/woocommerce/blob/master/templates/emails/email-order-items.php" rel="nofollow noreferrer">https://github.com/woocommerce/woocommerce/blob/master/templates/emails/email-order-items.php</a></p>