Bug 147852 [regression]Combo/listbox parameter doesn't work when put in parameter group
Description: Combo/listbox parameter doesn't work when put in parameter group Steps to reproduce: 1. New a prameter group 2. Insert a textbox parameter 3. Insert a combo/listbox parameter, input several values 4. Preview and select parameter values Expected result: Values can be selected Actual result: Once you selected a value from combo/listbox parameter list, the list would become empty.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ScalarParameterBean.java
}
	
	/**
	 * @param parameter The parameter to set.
	 */
	public void setParameter( ParameterDefinition  parameter )
	{
		this.parameter = parameter;
	}
	
	/**
	 * @return Returns the parameterValue.
	 */
	public String getValue( )
	{
		return value;
	}
	
	/**
	 * @param value The parameterValue to set.
	 */
	public void setValue( String value )
	{
		this.value = value;
	}
	
	/**
	 * @return Returns the selectionList.
	 */
	public Vector getSelectionList( )