Bug 130094 [regression] cannot edit group in Cheat Sheets
steps to reproduce: - create a report using Grouped Listing template - switch to Cheat Sheets, start/restart the tutorial - follow the steps to 1) create data source; 2) create data set; 3) bind the data to the table; and 4) edit the group expected behavior: - group dialog should be displayed actual behavior: - error message displayed. please refer to the attached image for detail
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/views/DefaultNodeProvider.java
catch ( SemanticException e )
		{
			ExceptionHandler.handle( e );
			return false;
		}
		return true;
	}
	private boolean checkNameExist( DesignElement element, String name )
	{
		if ( name == null || name.length( ) == 0 )
			return false;
		ElementDefn metaData = (ElementDefn) element.getDefn( );
		int ns = metaData.getNameSpaceID( );
		
		
		
		DesignElement existedElement = SessionHandleAdapter.getInstance( )
				.getReportDesignHandle( )
				.getModule( )
				.getNameSpace( ns )
				.getElement( name );
		return ( existedElement == null ) ? false : true;
	}
	private boolean performCreatePlaceHolder( ReportElementHandle handle )
	{
		boolean bIsNameExist = false;
		TemplateElementHandle template = null;
		String name = null;
		String desc = null;
		do