Bug 198270 Copying an aggregate does not make a copy, only a reference
In a table with groups or multiple columns, create an aggregate in a footer or a header. Copy the aggregate to another cell in a footer or a header. Make changes to the new aggregate appropriate to its new location. Expected result: The changes appear in only the new copy of the aggregate. Actual result: The changes appear in both aggregates because the new aggregate is not a copy, but a reference to the same aggregate as the original.
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/dialogs/CrosstabBindingDialogHelper.java
}
		}
		return null;
	}
	private String getFunctionDisplayName( String function )
	{
		try
		{
			return DataUtil.getAggregationFactory( )
					.getAggrInfo( function )
					.getDisplayName( );
		}
		catch ( BirtException e )
		{
			ExceptionHandler.handle( e );
			return null;
		}
	}
	private IAggregationInfo[] getFunctions( )
	{
		try
		{
			List aggrInfoList = DataUtil.getAggregationFactory( )
					.getAggrInfoList( IAggregationFactory.AGGR_XTAB );
			return (IAggregationInfo[]) aggrInfoList.toArray( new IAggregationInfo[0] );
		}
		catch ( BirtException e )
		{
			ExceptionHandler.handle( e );
			return new IAggregationInfo[0];