Bug 147604 Value in parameter list displays incorrectly with paramter group
Steps to reproduce: 1.Add a parameter group "pg" in report1, add a parameter"p" in the group 2.Add a label in report2, set a drill-through hyperlink, set target report is "report1", click parameter Expected result: Only one "p" lists in the value list Actual result: Two "p" appear
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HyperlinkBuilder.java
true,
				"*.rptdocument" ); 
	}
	private void createDrillthroughSelectTargetAnchor( Composite container )
	{
		final Group group = new Group( container, SWT.NONE );
		group.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		group.setText( Messages.getString( "HyperlinkBuilder.DrillThroughStep2" ) ); 
		group.setLayout( new GridLayout( ) );
		targetBookmarkButton = new Button( group, SWT.RADIO );
		targetBookmarkButton.setText( Messages.getString( "HyperlinkBuilder.DrillThroughTargetBookmark" ) ); 
		targetBookmarkButton.addSelectionListener( new SelectionListener( ) {
			public void widgetSelected( SelectionEvent e )
			{
				initAnchorChooser( targetReportHandle, false );
			}
			public void widgetDefaultSelected( SelectionEvent e )
			{
			}
		} );
		tocButton = new Button( group, SWT.RADIO );
		tocButton.setText( Messages.getString( "HyperlinkBuilder.DrillThroughTargetToc" ) ); 
		tocButton.addSelectionListener( new SelectionListener( ) {
			public void widgetSelected( SelectionEvent e )
			{
				initAnchorChooser( targetReportHandle, true );
			}
			public void widgetDefaultSelected( SelectionEvent e )
			{
			}