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
{
		inputHandle = input;
	}
	protected boolean initDialog( )
	{
		dataSetList = DEUtil.getDataSetList( inputHandle.getElementHandle( ) );
		switchTo( inputHandle.getLinkType( ) );
		if ( DesignChoiceConstants.ACTION_LINK_TYPE_HYPERLINK.equals( selectedType ) )
		{
			uriRadio.setSelection( true );
		}
		else if ( DesignChoiceConstants.ACTION_LINK_TYPE_BOOKMARK_LINK.equals( selectedType ) )
		{
			bookmarkRadio.setSelection( true );
		}
		else if ( DesignChoiceConstants.ACTION_LINK_TYPE_DRILL_THROUGH.equals( selectedType ) )
		{
			drillRadio.setSelection( true );
		}
		else
		{
			noneRadio.setSelection( true );
		}
		return super.initDialog( );
	}
	private void initDisplayArea( )
	{
		if ( DesignChoiceConstants.ACTION_LINK_TYPE_HYPERLINK.equals( selectedType ) )
		{
			if ( inputHandle.getURI( ) != null )