Fixed a typo in a comment. Refs #17742.

            return value

        if isinstance(value, datetime.datetime):

            if settings.USE_TZ and timezone.is_aware(value):

                # Convert aware datetimes to the current time zone

                # Convert aware datetimes to the default time zone

                # before casting them to dates (#17742).

                default_timezone = timezone.get_default_timezone()

                value = timezone.make_naive(value, default_timezone)