NDEV-50 Sort on column or index is not valid

[nihadness]

There is a bug/confusion in bika_listing's sorting algorithm.
We know that there is 'columns' dictionary in each listing view. Each item in that dictionary contains 'id' of the column and different options of that column.

self.columns = {
            'getRequestID': {
                'title': _('Request ID'),
                'attr': 'getId',
                'replace_url': 'absolute_url',
                'index': 'getId'},
            'getClientOrderNumber': {
                'title': _('Client Order'),
                'sortable': False,
                'toggle': True},
         }

One of the keys of column values is 'index' which must be used to sort folder items, if its column has chosen to be sorted on. It works properly when clicked on table headers to sort. However, when 'review_states' is changed, that 'sort_on' fails. Apparently, the reason underlies URL of 'review_state' buttons. The URLs should contain column ID where now they directly contain index ID.