Bug 155943 "Restore Properties" is always enabled for extended chart
Steps to reproduce: 1.New a report, includes a library, extends lib.chart 2.Choose the chart Expected result: "Restore Properties" is disabled untill set/change any local properties for the chart Actual result: "Restore Properties" is always enabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
*/
	public void visitColumn( TableColumn obj )
	{
		
		
		writer.startElement( DesignSchemaConstants.COLUMN_TAG );
		writer.attribute( DesignSchemaConstants.ID_ATTRIB, new Long( obj
				.getID( ) ).toString( ) );
		attribute( obj, DesignSchemaConstants.VIEW_ACTION_ATTRIB,
				DesignElement.VIEW_ACTION_PROP );
		super.visitColumn( obj );
		property( obj, TableColumn.WIDTH_PROP );
		property( obj, TableColumn.REPEAT_PROP );
		property( obj, TableColumn.SUPPRESS_DUPLICATES_PROP );
		writeStructureList( obj, TableColumn.VISIBILITY_PROP );
		writeStyle( obj );
		writer.endElement( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.design.elements.DesignVisitor#visitColumn(org.eclipse.birt.report.model.design.elements.TableColumn)
	 */
	public void visitRow( TableRow obj )
	{
		writer.startElement( DesignSchemaConstants.ROW_TAG );
		writer.attribute( DesignSchemaConstants.ID_ATTRIB, new Long( obj
				.getID( ) ).toString( ) );
		attribute( obj, DesignSchemaConstants.VIEW_ACTION_ATTRIB,
				DesignElement.VIEW_ACTION_PROP );