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.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
else
			{
				setTypeSelect( dataTypes[0] );
				this.newBinding = StructureFactory.newComputedColumn( getBindingHolder( ),
						isAggregate( ) ? DEFAULT_AGGREGATION_NAME
								: DEFAULT_ITEM_NAME );
				setName( this.newBinding.getName( ) );
			}
		}
		else
		{
			if ( isRef )
			{
				int i = 0;
				for ( Iterator iterator = getBindingHolder( ).getDataBindingReference( )
						.getColumnBindings( )
						.iterator( ); iterator.hasNext( ); )
				{
					ComputedColumnHandle computedColumn = (ComputedColumnHandle) iterator.next( );
					if ( isAggregate( ) )
					{
						if ( computedColumn.getAggregateFunction( ) == null
								|| computedColumn.getAggregateFunction( )
										.equals( "" ) )
							continue;
					}
					else
					{
						if ( computedColumn.getAggregateFunction( ) != null
								&& !computedColumn.getAggregateFunction( )