Bug 142928 Item from library is changed to a report design item after revert to report item
Details: Item from library is changed to a report design item after revert to report item. Setp: 1.New a template. 2.Use a libary contain a label. 3.Drop the label from library explorer into layout. 4.Change the label to template item. 5.Revert the template item to report item. Actual result: The label is become a report item, but a item from library. Please see the attach image. Exception result: The lable is revert a item from library.
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