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/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
boolean revert = true;
		if ( revert )
		{
			writeContents( obj, slot, null );
			return;
		}
		List list = obj.getSlot( slot ).getContents( );
		if ( list.isEmpty( ) )
			return;
		
		boolean needWrite = false;
		Iterator iter = list.iterator( );
		while ( iter.hasNext( ) && !needWrite )
		{
			DesignElement column = (DesignElement) iter.next( );
			List propDefns = column.getPropertyDefns( );
			Iterator iterDefn = propDefns.iterator( );
			while ( iterDefn.hasNext( ) && !needWrite )
			{
				PropertyDefn propDefn = (PropertyDefn) iterDefn.next( );
				if ( column
						.getLocalProperty( getModule( ), propDefn.getName( ) ) != null )
				{
					needWrite = true;
				}
			}
		}
		if ( needWrite )
		{