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
} );
		anchorChooser = new Combo( group, SWT.BORDER | SWT.READ_ONLY );
		anchorChooser.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		anchorChooser.addSelectionListener( new SelectionAdapter( ) {
			public void widgetSelected( SelectionEvent e )
			{
				if ( anchorChooser.getData( ) instanceof List )
				{
					List value = (List) anchorChooser.getData( );
					bookmarkEditor.setText( (String) value.get( anchorChooser.getSelectionIndex( ) ) );
				}
				else
				{
					bookmarkEditor.setText( anchorChooser.getText( ) );
				}
				updateButtons( );
			}
		} );
	}
	private void createDrillthroughCreateLinkExpression( Composite container )
	{
		Group group = new Group( container, SWT.NONE );
		group.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		group.setText( Messages.getString( "HyperlinkBuilder.DrillThroughStep3" ) ); 
		GridLayout layout = new GridLayout( );
		layout.numColumns = 3;
		group.setLayout( layout );
		new Label( group, SWT.NONE ).setText( Messages.getString( "HyperlinkBuilder.DrillThroughLinkExpression" ) ); 
		bookmarkEditor = new Text( group, SWT.BORDER | SWT.READ_ONLY );
		bookmarkEditor.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );