problems with sort in tomahawk datatable

[Wyder, Michael (GMX)]

Hi

I have 2 jsp's. Page A is the list which can be sorted, the other page B 
is a detail page who shows detail of one entry from page A. My problem 
is, that the choosen sort is not preserved: I do some sort on page A, 
then i navigate to page B. Afterthat i navigate back to page A and i see 
that the sort of the list is reseted to the default sort. Any ideas? 
Both pages are backed by the same bean, which has session scope.

I made some debug and saw, that the entries in the DataModel in the 
backing bean never change its order, even if i do some sort.

Here the declaration of the datatable:
                
<t:dataTable
        var="address"
        value="#{adresseServiceBean.addresses}"
        sortable="true"
        sortColumn="#{adresseServiceBean.sortColumn}"
        sortAscending="#{adresseServiceBean.sortAscending}"
        preserveSort="true"
        renderedIfEmpty="false">

Thanks for help!
Michael