title: Woocommerce order formatted billing address reorder and custom billing field
body: <p>Thanks to the filter "WooCommerce admin billing fields" I have ordered the billing fields in the notificiación footer by email but when I try to insert my custom billing field does not appear.</p>
  
  <pre><code>add_filter( 'woocommerce_order_formatted_billing_address' , 'woo_reorder_billing_fields', 10, 2 );
  
  function woo_reorder_billing_fields( $address, $wc_order ) {
  
      $address = array(
          'first_name'    =&gt; $wc_order-&gt;billing_first_name,
          'last_name'     =&gt; $wc_order-&gt;billing_last_name,
          'company'       =&gt; $wc_order-&gt;billing_company,
          'my_field'      =&gt; $wc_order-&gt;billing_my_field,
          'country'       =&gt; $wc_order-&gt;billing_country
          );
  
      return $address;
  }
  </code></pre>
  
  <p>In order admin edit I can show my custom billing field thanks to the filter "woocommerce_admin_billing_fields", first adding the field and then reordering the Array. </p>
  
  <p>I note that I added before and I have reordered this field in my checkout with the filter "woocommerce_checkout_fields".</p>
  
  <p>Why not show my custom field if "$ wc_order" object stores the field in the checkout?</p>
  
  <p>Any ideas? </p>
  
  <p>Thanks in advance!</p>