commit c7bb9c0efa0cc81af829a9c17ec8829554542038
Author: Tamás Brückner <tamas.bruckner@integralvision.hu>
Date:   Fri Feb 9 18:00:56 2018 +0100

    Remove dummy_value

diff --git a/commerce_cop.module b/commerce_cop.module
index b9ba8d7..d5c137d 100644
--- a/commerce_cop.module
+++ b/commerce_cop.module
@@ -284,14 +284,7 @@ function commerce_cop_submit_form($payment_method, $pane_values, $checkout_pane,
       '#markup' => $payment_info,
     );
   }
-
-  // Need to create a dummy value to solve http://drupal.org/node/1230666
-  // Probably an issue in the main commerce module
-  $form['transaction'] = array(
-    '#type' => 'hidden',
-    '#value' => 'dummy_value'
-  );
-
+  
   return $form;
 }