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
private static final IChoiceSet CHOICESET_TARGET = DesignEngine.getMetaDataDictionary( )
			.getChoiceSet( DesignChoiceConstants.CHOICE_TARGET_NAMES_TYPE );
	private static final IChoiceSet CHOICESET_FORMAT = DesignEngine.getMetaDataDictionary( )
			.getChoiceSet( DesignChoiceConstants.CHOICE_ACTION_FORMAT_TYPE );
	private static final ParamBinding dummyParameterBinding = StructureFactory.createParamBinding( );
	private ActionHandle inputHandle;
	private List dataSetList;
	private Composite displayArea;
	private String selectedType;
	
	private Button noneRadio, uriRadio, bookmarkRadio, drillRadio;
	private Combo bookmarkChooser, targetChooser, formatChooser;
	private Text bookmarkEditor;
	/**
	 * Target report design location.
	 */
	private Text locationEditor;
	private CLabel messageLine;
	private TableViewer paramBindingTable;
	private ComboBoxCellEditor parameterChooser;
	private ArrayList bindingList = new ArrayList( );
	private ArrayList parameterList = new ArrayList( );
	private Object targetReportHandle;
	private IStructuredContentProvider contentProvider = new IStructuredContentProvider( ) {
		public void dispose( )
		{
		}
		public void inputChanged( Viewer viewer, Object oldInput,
				Object newInput )
		{