I'm using a `dataTable` inside another `dataTable`. 
When I try to export (in any format) using the `dataExporter` i got something like: "`org.primefaces.component.datatable.DataTable@1b675ca`" instead of the inner-dataTable values.

Is it a limit of `dataExporter`? I have to implement this functionality extending `dataExporter`?
Any Alternatives?