When using <ice:selectOneListbox> with Liferay, items are displayed as the toString value instead of the specified itemValue property of the nested <f:selectItem> components.

This happens even even in very simple cases like this:

<ui:composition xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:aui="http://portletfaces.org/alloyfaces/aui"
xmlns:aui-cc="http://portletfaces.org/alloyfaces/aui-cc"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:ice="http://www.icesoft.com/icefaces/component"
xmlns:icecore="http://www.icefaces.org/icefaces/core"
xmlns:t="http://myfaces.apache.org/tomahawk"
template="templates/main.xhtml">
<ui:define name="body">
<ice:form id="selectMediaForm" styleClass="aui-form dlp">
<ice:selectOneListbox size="1" label="#{i18n['scope']}" partialSubmit="true"
required="true"
value="#{mutablePortletPreferencesValues['scopeGroupId'].value}">
<f:selectItem itemLabel="#{i18n['select']}" itemValue="" />
<f:selectItems itemValue="#{group.groupId}"
itemLabel="#{group.name}" value="#{preferencesBackingBean.groups}"
var="group" />
</ice:selectOneListbox>
               </ice:form>
</ui:composition>