old_contents: from simple_translation.middleware import MultilingualGenericsMiddleware
  from cmsplugin_blog.models import Entry
  
  class MultilingualBlogEntriesMiddleware(MultilingualGenericsMiddleware):
      
      language_fallback_middlewares = [
          'django.middleware.locale.LocaleMiddleware',
          'cms.middleware.multilingual.MultilingualURLMiddleware'
      ]
new_contents: from simple_translation.middleware import MultilingualGenericsMiddleware, filter_queryset_language
  from cmsplugin_blog.models import Entry
  
  class MultilingualBlogEntriesMiddleware(MultilingualGenericsMiddleware):
      
      language_fallback_middlewares = [
          'django.middleware.locale.LocaleMiddleware',
          'cms.middleware.multilingual.MultilingualURLMiddleware'
      ]
  
      def process_view(self, request, view_func, view_args, view_kwargs):
          super(MultilingualGenericsMiddleware, self).process_response(request, view_func, view_args, view_kwargs)
          if 'queryset_or_model' in view_kwargs and hasattr(view_kwargs['queryset_or_model'], 'model'):
              view_kwargs['queryset_or_model'] = filter_queryset_language(request, view_kwargs['queryset_or_model'])
subject: fix tagged_object_list in middleware