Bug 191140 Cross tab - Highlight rule expression does not work
Please refer to the attached report design - I define highlight rule expression on the cross tab item - It fails to apply the rule.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/command/PropertyCommand.java
Object oldValue = element.getLocalProperty( module, prop );
		if ( oldValue == null && value == null )
			return;
		if ( oldValue != null && value != null && oldValue.equals( value ) )
			return;
		
		if ( element instanceof ExtendedItem )
		{
			ExtendedItem extendedItem = ( (ExtendedItem) element );
			
			
			if ( extendedItem.isExtensionModelProperty( prop.getName( ) )
					|| prop.isUseOwnModel( ) )
			{
				IReportItem extElement = extendedItem.getExtendedElement( );
				if ( extElement == null )
					return;
				extElement.checkProperty( prop.getName( ), value );
				extElement.setProperty( prop.getName( ), value );
				return;
			}
		}
		PropertyRecord record = new PropertyRecord( element, prop, value );
		record.setEventTarget( getEventTarget( prop ) );
		getActivityStack( ).execute( record );
	}
	/**