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
* 
	 * @param input
	 *            the serialized string
	 * @throws DesignFileException
	 */
	public void setInputString( String input ) throws DesignFileException
	{
		setInput( ModuleUtil.deserializeAction( input ) );
	}
	/**
	 * Returns the serialized result action.
	 * 
	 * @return the serialized result action
	 * @throws IOException
	 */
	public String getResultString( ) throws IOException
	{
		return ModuleUtil.serializeAction( (ActionHandle) getResult( ) );
	}
	/**
	 * Set radio members enable, and others radio's members disable.
	 * 
	 * @param container
	 * @param radio
	 * @param enable
	 */
	private void selectRadio( Composite container, Button radio )
	{
		Control[] children = container.getChildren( );
		boolean isChoiceChild = false;