yixun_hf 回调返回值优化

helper/refill/api/yl/yixun_hf/RefillCallBack.php

@@ -45,9 +45,9 @@ class RefillCallBack implements refill\IRefillCallBack
             Model('refill_order')->edit($order_id, $data);
             return [$order_id, true, false, true, $official_sn];
         } elseif ($code === 3) {
-            return [$order_id, false, true, true, $official_sn];
+            return [$order_id, false, true, true, ''];
         } else {
-            return [$order_id, false, false, false, $official_sn];
+            return [$order_id, false, false, false, ''];
         }
     }
 }