Bug 122419 Masterpage cannot access Data Set properties
If one references a data set property in the master page, i.e. row["title"], then the viewer displays only 'undefined'.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/ReportQueryBuilder.java
popExpressions( );
			popQuery( );
		}
		/**
		 * processes a table/list group
		 */
		protected IGroupDefinition handleGroup( GroupDesign group,
				GroupHandle handle )
		{
			GroupDefinition groupDefn = new GroupDefinition( group.getName( ) );
			groupDefn.setKeyExpression( handle.getKeyExpr( ) );
			String interval = handle.getInterval( );
			if ( interval != null )
			{
				groupDefn.setInterval( parseInterval( interval ) );
			}
			
			groupDefn.setIntervalRange( handle.getIntervalRange( ) );
			
			groupDefn.setIntervalStart( handle.getIntervalBase( ) );
			
			String direction = handle.getSortDirection( );
			if ( direction != null )
			{
				groupDefn.setSortDirection( parseSortDirection( direction ) );
			}
			groupDefn.getSorts( ).addAll( createSorts( handle ) );
			groupDefn.getFilters( ).addAll( createFilters( handle ) );
			getParentQuery( ).getGroups( ).add( groupDefn );
			return groupDefn;