Bug 176436 Charts Imported from Libraries do not update when libraries change
During a live presentation of BIRT at EclipseCon, we came across a rather embarassing issue. When charts are included in a library, and imported into a report design from a library, any changes to the library instance of the chart do not reflect in the report itself.
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/extension/PeerExtensionTest.java
/**
	 * Test initializeReportItem method. when element has virtual parent, also
	 * can be initialized.
	 * 
	 * @throws Exception
	 */
	public void testVirtualExtension( ) throws Exception
	{
		openDesign( FILE_NAME_5 );
		ExtendedItemHandle handle = (ExtendedItemHandle) designHandle
				.findElement( "newHeaderMatrix" ); 
		assertNotNull( handle );
	}
	/**
	 * Tests the parser for the extension and the TestPeer--implementation of
	 * IPeer.
	 */
	public void testExtensionMeta( )
	{
		MetaDataDictionary dd = MetaDataDictionary.getInstance( );
		assertTrue( dd.getExtensions( ).size( ) >= 2 );
		ExtensionElementDefn extDefn = (ExtensionElementDefn) dd
				.getExtension( TESTING_BOX_NAME );
		assertNotNull( extDefn );
		assertEquals( "TestingBox", extDefn.getDisplayName( ) ); 
		assertNull( extDefn.getDisplayNameKey( ) );
		assertEquals( TESTING_BOX_NAME, extDefn.getName( ) );
		assertEquals( MetaDataConstants.REQUIRED_NAME, extDefn.getNameOption( ) );
		assertEquals( true, extDefn.allowsUserProperties( ) );
		assertEquals( TESTING_BOX_NAME, extDefn.getName( ) );