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
{
		List tocList = new ArrayList( );
		if ( parent.getParent( ) != null )
		{
			tocList.add( "\"" + parent.getDisplayString( ) + "\"" ); 
		}
		List childToc = parent.getChildren( );
		for ( Iterator iter = childToc.iterator( ); iter.hasNext( ); )
		{
			TOCNode node = (TOCNode) iter.next( );
			tocList.addAll( getAllTocDisplayString( node ) );
		}
		return tocList;
	}
	private void addRadioListener( Button radio, final String type )
	{
		radio.addSelectionListener( new SelectionAdapter( ) {
			public void widgetSelected( SelectionEvent e )
			{
				if ( selectedType != type )
				{
					switchTo( type );
				}
			}
		} );
	}
	private void updateButtons( )
	{
		boolean okEnable = true;
		if ( DesignChoiceConstants.ACTION_LINK_TYPE_HYPERLINK.equals( selectedType ) )