def __init__(self, *args, **kwargs):
        super(SortableModelAdmin, self).__init__(*args, **kwargs)

        # Keep originals for restore
        self._original_ordering = copy(self.ordering)
        self._original_list_display = copy(self.list_display)
        self._original_list_editable = copy(self.list_editable)
        self._original_exclude = copy(self.exclude)
        self._original_list_per_page = self.list_per_page

        self.enable_sortable()