CRM-12667

----------------------------------------
* CRM-12667: Tell a Friend causes error: "You do not have permission to access this page"
  http://issues.civicrm.org/jira/browse/CRM-12667

CRM/Friend/Form/Event.php

@@ -64,7 +64,13 @@ class CRM_Friend_Form_Event extends CRM_Event_Form_ManageEvent {
       $defaults['entity_table'] = 'civicrm_event';
       $defaults['entity_id'] = $this->_id;
       CRM_Friend_BAO_Friend::getValues($defaults);
-      $this->_friendId = CRM_Utils_Array::value('id', $defaults);
+      if (CRM_Utils_Array::value('id', $defaults)) {
+        $defaults['tf_id'] = CRM_Utils_Array::value('id', $defaults);
+        $this->_friendId = $defaults['tf_id'];
+        // lets unset the 'id' since it conflict with eventID (or contribID)
+        // CRM-12667
+        unset($defaults['id']);
+      }
       $defaults['tf_title'] = CRM_Utils_Array::value('title', $defaults);
       $defaults['tf_is_active'] = CRM_Utils_Array::value('is_active', $defaults);
       $defaults['tf_thankyou_title'] = CRM_Utils_Array::value('thankyou_title', $defaults);