Try Fix #54

Thanks

Author: tsmr

setup.php

@@ -72,8 +72,6 @@ function plugin_init_satisfaction()
             $PLUGIN_HOOKS['pre_item_update']['satisfaction'][TicketSatisfaction::class] = [
                 SurveyAnswer::class, 'preUpdateSatisfaction'];
 
-            $PLUGIN_HOOKS['item_get_events']['satisfaction'] =
-            ['NotificationTargetTicket' => [NotificationTargetTicket::class, 'addEvents']];
 
             $PLUGIN_HOOKS['item_delete']['satisfaction'] = ['Ticket' => [Reminder::class, 'deleteItem']];
 
@@ -94,6 +92,9 @@ function plugin_init_satisfaction()
             }
         }
 
+        $PLUGIN_HOOKS['item_get_events']['satisfaction'] =
+            ['NotificationTargetTicket' => [NotificationTargetTicket::class, 'addEvents']];
+
         $PLUGIN_HOOKS['item_get_datas']['satisfaction'] = [
             NotificationTargetTicket::class => [SurveyAnswer::class,
          'addNotificationDatas']];

src/NotificationTargetTicket.php

@@ -55,9 +55,10 @@ public function getEvents()
 
     public static function addEvents(\NotificationTargetTicket $target)
     {
-
-        $target->events['survey_reminder']
-         = __('Survey Reminder', 'satisfaction');
+        if (!isset($target->events['survey_reminder'])) {
+            $target->events['survey_reminder']
+                = __('Survey Reminder', 'satisfaction');
+        }
     }
 
     public function addDataForTemplate($event, $options = []) {