Bug 146159 [Regression]Changing font operation doesn't work other than the first time
Description: The first time changing operation can work well. However, Change it again, it won't work. Steps: 1.Insert lable/text to layout or master page 2.Change the font from serif to cursive, it works well 3.Change the font again Result: The action doesn't work Additional infor: build number:200606080632
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/editparts/ReportElementEditPart.java
{
		IFigure layer = getHandleLayer( );
		List list = layer.getChildren( );
		List temp = new ArrayList( );
		int size = list.size( );
		for ( int i = 0; i < size; i++ )
		{
			Object obj = list.get( i );
			if ( obj instanceof AbstractGuideHandle )
			{
				temp.add( obj );
			}
		}
		size = temp.size( );
		for ( int i = 0; i < size; i++ )
		{
			IFigure figure = (IFigure) temp.get( i );
			layer.remove( figure );
		}
	}
	/**
	 * Removes the guide handle.
	 */
	protected void removeGuideFeedBack( )
	{
		if ( guideHandle != null
				&& guideHandle.getParent( ) == getHandleLayer( ) )
		{
			getHandleLayer( ).remove( guideHandle );
		}