SelectBooleanCheckbox in editable DataTable doesn't change

[xfersys1]

I have a dataTable that is editable (editMode = "cell").
when I try to edit checkbox selection, the data is not actualized after the change was made.

<p:dataTable id="submodels" var="submodel" value="#{projectMB.submodels}" editable="true" editMode="cell" widgetVar="cellSubmodels">
<p:column headerText="Mapping file">
<p:cellEditor>
<f:facet name="output">
<h:selectBooleanCheckbox value="#{submodel.mapping}" onclick="return false;" style="width:96%" label="Root model" readonly="true"/>
</f:facet> <f:facet name="input"> <h:selectBooleanCheckbox value="#{submodel.mapping}" style="width:96%" label="Root model"/> </f:facet>
</p:cellEditor>
</p:column>
</p:dataTable>

Can you point out what I have done wrong?
I'm using Primefaces version 6.0

Best Regards.