Merge branch 'hotfix/unionData' into gray

@@ -710,6 +710,10 @@ class IndexController extends AbstractAction
                 $unionInfo = empty($unionKey) ? array() : json_decode($unionKey, true);
                 /* 模拟APP的User-Agent */
                 $userAgent = isset($unionInfo['client_id']) ? 'YOHO!Buy/3.8.2.259(Model/PC;Channel/' . $unionInfo['client_id'] . ';uid/' . $uid . ')' : null;
+
+                if (empty($unionKey) && !empty($_COOKIE['union_data'])) {
+                    $unionKey = $_COOKIE['union_data'];
+                }
             }
 
             /* tar modified 161206 套餐 */