Bug 176450 Support link to CSS Feature(Model Part)
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/util/ModelUtil.java
/**
	 * Duplicates the extension identifier. The extension identifier must be set
	 * before copy other property values. If the identifier is not set first,
	 * extension property definitions cannot be found. Hence, duplicating
	 * property values cannot be right.
	 * <p>
	 * The extension identifier is:
	 * <ul>
	 * <li>EXTENSION_ID_PROP for Oda elements.
	 * <li>EXTENSION_NAME_PROP for extension elements like chart.
	 * </ul>
	 * 
	 * @param source
	 *            the source element
	 * @param destination
	 *            the destination element
	 * @param sourceModule
	 *            the root module of the source
	 */
	static void duplicateExtensionIdentifier( DesignElement source,
			DesignElement destination, Module sourceModule )
	{
		
		
		
		if ( source instanceof IOdaExtendableElementModel )
		{
			String extensionId = (String) source.getProperty( sourceModule,
					IOdaExtendableElementModel.EXTENSION_ID_PROP );
			destination.setProperty(