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
children[i].dispose( );
		}
		IAggregationInfo function = getFunctionByDisplayName( cmbFunction.getText( ) );
		if ( function != null )
		{
			argsMap.clear( );
			List args = getFunctionArgNames( function.getName( ) );
			if ( args.size( ) > 0 )
			{
				( (GridData) argsComposite.getLayoutData( ) ).exclude = false;
				( (GridData) argsComposite.getLayoutData( ) ).heightHint = SWT.DEFAULT;
				for ( Iterator iterator = args.iterator( ); iterator.hasNext( ); )
				{
					String argName = (String) iterator.next( );
					Label lblArg = new Label( argsComposite, SWT.NONE );
					lblArg.setText( argName + ":" ); 
					lblArg.setLayoutData( new GridData( GridData.FILL_HORIZONTAL
							| GridData.GRAB_HORIZONTAL ) );
					Text txtArg = new Text( argsComposite, SWT.BORDER );
					GridData gridData = new GridData( );
					gridData.widthHint = txtFilter.getBounds( ).width - 7;
					txtArg.setLayoutData( gridData );
					createExpressionButton( argsComposite, txtArg );
					argsMap.put( argName, txtArg );
				}
			}
			else
			{
				( (GridData) argsComposite.getLayoutData( ) ).heightHint = 0;