docs: private static boolean dateByOrdinal(
          DateTimeFormatterBuilder bld,
          Collection<DateTimeFieldType> fields,
          boolean extended,
          boolean strictISO) {
          
          boolean reducedPrec = false;
          if (fields.remove(DateTimeFieldType.year())) {
              bld.append(Constants.ye);
              if (fields.remove(DateTimeFieldType.dayOfYear())) {
                  // YYYY-DDD/YYYYDDD
                  appendSeparator(bld, extended);
                  bld.appendDayOfYear(3);
              } else {
                  // YYYY/YYYY
                  reducedPrec = true;
              }
              
          } else if (fields.remove(DateTimeFieldType.dayOfYear())) {
              // -DDD/-DDD
              bld.appendLiteral('-');
              bld.appendDayOfYear(3);
          }
          return reducedPrec;
      }