title: Ajax update doesn't work, when using filter on p:dataTable
body: <p>I have a datable which includes the filter feature of primefaces. Some operations can be done on the table (e.g. edit). The datable will be updated after the user's operation is completed using ajax.
  It updates the table directly and works well, if I don't filter the datatable, unfortunately not if I use it and edit it.</p>
  
  <p>That's how my datatable looks like:</p>
  
  <pre><code>    &lt;p:dataTable id="dataTable" var="row"
                  value="#{bean.value}"
                  filteredValue="#{bean.filteredValue}"
                  paginator="true" rows="25" paginatorPosition="bottom"
                  rowKey="${row.id}"
                  paginatorTemplate="{CurrentPageReport}  {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink}"
                  editable="true"&gt;
  </code></pre>
  
  <p>and the Button which triggers the update </p>
  
  <pre><code>&lt;p:commandButton value="Save"
                          actionListener="#{bean.save}"
                          update=":form"/&gt;
  </code></pre>