      def as_data(self):
          return {f: e.as_data() for f, e in self.items()}
  
      def as_json(self, escape_html=False):
          return json.dumps(self.get_json_data(escape_html))
  
      def as_ul(self):
          if not self:
 
</s> remove         return json.dumps({f: e.get_json_data(escape_html) for f, e in self.items()})
 </s> add         return json.dumps(self.get_json_data(escape_html))
    def get_json_data(self, escape_html=False):
        return {f: e.get_json_data(escape_html) for f, e in self.items()}

      def as_data(self):
          return {f: e.as_data() for f, e in self.items()}
  
    def get_json_data(self, escape_html=False):
        return {f: e.get_json_data(escape_html) for f, e in self.items()}

      def as_json(self, escape_html=False):
          return json.dumps(self.get_json_data(escape_html))
  
      def as_ul(self):
          if not self:
keep keep add keep keep keep keep keep
 Fixed #27922 -- Added ErrorDict.get_json_data(). 
django/forms/utils.py