Bug 213822 [Regression]Can not save the modification of group in Aggregation builder
Description: [2.2.2]Can not save the modification of group in Aggregation builder Build number: 2.2.2.v20071225-0630 Steps to reproduce: 1, New a table with two groups 2, Insert a aggregation builder in group footer 3, Select the first group and click OK 4, Open the builder again and modify the group to group2 Expected result: The modification can be saved Actual result: The modification takes no effect and the report design has no dirty mark after the modification. Error log:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
{
			if ( isRef )
			{
				if ( getBinding( ) == null )
				{
					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( )
											.equals( "" ) )
								continue;
						}
						cmbName.add( computedColumn.getName( ) );
					}
				}
				else
				{
					setDisplayName( getBinding( ).getDisplayName( ) );