erp5_xhtml_style: listbox worked without isFiltred patch

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/ListBox_asHTML.zpt

@@ -19,7 +19,7 @@
               show_select_column here/showSelectColumn;
               show_anchor_column here/showAnchorColumn;
               show_search_line here/showSearchLine;
-              global is_filtered python: show_search_line and not here.isNotFiltered();
+              global is_filtered python: show_search_line and hasattr(here,'isNotFiltered') and not here.isNotFiltered();
               is_web_mode real_context/isWebMode | nothing;
               is_dialog_mode request/dialog_mode | nothing;
               display_style_list here/getDisplayStyleList;