RenderUtils.invalidateViewState();
    public ActionForward chooseLessonPlanning(ActionMapping mapping, ActionForm form,	    HttpServletRequest request, HttpServletResponse response) {	final IViewState viewState = RenderUtils.getViewState();	SummariesManagementBean bean = (SummariesManagementBean) viewState.getMetaObject().getObject();	LessonPlanning lessonPlanning = bean.getLessonPlanning();	if (lessonPlanning != null) {	    bean.setSummaryText(lessonPlanning.getPlanning());	    bean.setTitle(lessonPlanning.getTitle());	    bean.setLastSummary(null);	}	return goToSummaryManagementPage(mapping, request, (DynaActionForm)form, bean);    }