code: def get_form(self, request, obj=None, **kwargs):
          
          form_class = super(TranslatableAdmin, self).get_form(request, obj, **kwargs)
          if self._has_translatable_model():
              form_class.language_code = self.get_form_language(request, obj)
  
          return form_class
docs: Pass the current language to the form.