Conditional column rendering

Conditional column rendering

I'm working with jsf 2.0. I have this datatable
<h:dataTable value="#{agreement.licenseProducts}"
var="licenseProduct"
styleClass="pnx-table pnx-table-bdr pnx-table-unstyled mp-license-info">
<h:column>
<f:facet name="header">
<h:outputText value="Product" />
</f:facet>
<h:outputText value="#{licenseProduct.description}" />
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Serial Number" />
</f:facet>
<h:outputText value="#{licenseProduct.serialNumber}" />
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="#{agreement.labelForConcurrency}" />
</f:facet>
<h:outputText value="#{licenseProduct.concurrent}" />
</h:column>
<ui:fragment rendered="#{agreement.managementTool != 'NONE'}">
<h:column>
<f:facet name="header">
<h:outputText value="#{agreement.labelForLicenseType}" />
<span class="pnx-icon-right pnx-icon-info pnx-tooltip">
<div class="pnx-tooltip-content">
<h:outputText value="Tooltip content" />
</div>
</span>
</f:facet>
<h:outputText value="#{licenseProduct.licenseBase}" />
</h:column>
</ui:fragment>
<h:column>
<f:facet name="header">
<h:outputText value="#{agreement.labelForSeatCount}" />
</f:facet>
<h:outputText value="#{licenseProduct.seats}" />
</h:column>
</h:dataTable>
The problem is that the ui:fragment part is not working. No matter what
the attribute's value is, it will NEVER show the column.
Any ideas?