erp5_core: in Base_getWorkflowHistoryItemList, deploy getReference for transition.

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/Base_getWorkflowHistoryItemList.xml

@@ -128,7 +128,7 @@ for workflow_item in workflow_item_list:\n
         if display:\n
           value = wf_transitions.get(value, marker) and (wf_transitions[value].title or wf_transitions[value].actbox_name) or value\n
         else:\n
-          value = wf_transitions.get(value, marker) and (wf_transitions[value].id or wf_transitions[value].actbox_name) or value\n
+          value = wf_transitions.get(value, marker) and (wf_transitions[value].getReference() or wf_transitions[value].actbox_name) or value\n
     if display:\n
       if key == \'error_message\' and same_type(value, \'\'):\n
         value = context.Localizer.erp5_ui.gettext(value)    \n