Tomahawk facet problem: DetailStamp

Question

I use an inputTextarea inside a detailStamp in each row of a dataTable.
When I edit the value of an inputTextarea and I show the detailStamp of another row I get the same value of the edited one.
This happends for every rows.
Any help is welcome!
Follow the sample code of my dataTable:
<t:dataTable styleClass="dataTable" style="margin: 10px;"
value="#{TaskManagerBean.tasks}" var="task"
id="data"
rows="20"
rowClasses="odd, even"
preserveDataModel="false"
preserveSort="true"
varDetailToggler="detailToggler"
renderedIfEmpty="false">
<h:column>
<f:facet name="header">
<h:outputText value="DETAILS" />
</f:facet>
<h:commandLink rendered="#{detailToggler.currentDetailExpanded}" action="#{detailToggler.toggleDetail}">
<h:outputText value="Hide" />
</h:commandLink>
<h:commandLink rendered="#{!detailToggler.currentDetailExpanded}" action="#{detailToggler.toggleDetail}">
<h:outputText value="Show" />
</h:commandLink>
</h:column>
<f:facet name="detailStamp">
<t:panelGroup layout="block">
<t:panelGroup>
<t:outputText style="text-align:left;" value="info Wet"/>
<t:htmlTag value="br"></t:htmlTag>
<t:inputTextarea id="textarea" style="width:400px;height:200px;" value="#{task.infoWet}"/>
<t:htmlTag value="br"></t:htmlTag>
<t:commandButton value="Save" action="#{TaskManagerBean.saveInfoWet}">
<t:updateActionListener property="#{TaskManagerBean.selectedTask}" value="#{task}" />
</t:commandButton>
</t:panelGroup>
</t:panelGroup>
</f:facet>
</t:dataTable>

Answer 1

The f:facet name="header" accepts only one child component. If you want to add multiple childs to it, group it in a h:panelGroup.