code: def lookup_field_help(self, field, default=None):
          
          default = None
  
          for form_field in self.form:
              if form_field.name == field:
                  default = form_field.help_text
                  break
  
          return super(SmartFormMixin, self).lookup_field_help(field, default=default)
docs: Looks up the help text for the passed in field.
  
          This is overloaded so that we can check whether our form has help text set
          explicitely.  If so, we will pass this as the default to our parent function.