  
          if method in ('DELETE', 'OPTIONS'):
              return True  # Don't actually need to return a form
  
          if not getattr(view, 'get_serializer', None) or not parsers.FormParser in view.parser_classes:
              return
  
          serializer = view.get_serializer(instance=obj)
          data = serializer.data
          form_renderer = self.form_renderer_class()
 
</s> remove             'sub_comment': ''
 </s> add             #'sub_comment': ''
        if not getattr(view, 'get_serializer', None) or not any(parser.supports_html_forms for parser in view.parser_classes):
  
          if method in ('DELETE', 'OPTIONS'):
              return True  # Don't actually need to return a form
  
        if not getattr(view, 'get_serializer', None) or not any(parser.supports_html_forms for parser in view.parser_classes):
              return
  
          serializer = view.get_serializer(instance=obj)
          data = serializer.data
          form_renderer = self.form_renderer_class()
keep keep keep keep replace keep keep keep keep keep
 First hacky pass at displaying raw data 
rest_framework/renderers.py