code: def response_change(self, request, obj):
          
          if (
              request.POST
              and '_continue' not in request.POST
              and '_saveasnew' not in request.POST
              and '_addanother' not in request.POST
          ):
              # Popup in pick mode or normal mode. In both cases we want to go
              # back to the folder list view after save. And not the useless file
              # list view.
              if obj.folder:
                  url = reverse('admin:filer-directory_listing',
                                kwargs={'folder_id': obj.folder.id})
              else:
                  url = reverse(
                      'admin:filer-directory_listing-unfiled_images')
              url = "{0}{1}".format(
                  url,
                  admin_url_params_encoded(request),
              )
              return HttpResponseRedirect(url)
          return super(FileAdmin, self).response_change(request, obj)
docs: Overrides the default to be able to forward to the directory listing
          instead of the default change_list_view