Hijri Calendar: list index out of range

Date: 10 Safar 1004 Hijri to Gregorian

HijriCalendar('02-10-1004').get_date()

In [28]: HijriCalendar('02-10-1004').get_date()
---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
<ipython-input-28-2c9dd191b1d9> in <module>()
----> 1 HijriCalendar('02-10-1004').get_date()

/usr/local/lib/python2.7/dist-packages/dateparser/calendars/__init__.pyc in get_date(self)
     22     def get_date(self):
     23         try:
---> 24             date_obj, period = self.parser.parse(self.source, settings)
     25             return {'date_obj': date_obj, 'period': period}
     26         except ValueError:

/usr/local/lib/python2.7/dist-packages/dateparser/calendars/__init__.pyc in parse(cls, datestring, settings)
    137     def parse(cls, datestring, settings):
    138         datestring = cls.to_latin(datestring)
--> 139         return super(non_gregorian_parser, cls).parse(datestring, settings)

/usr/local/lib/python2.7/dist-packages/dateparser/parser.pyc in parse(cls, datestring, settings)
    453         tokens = tokenizer(datestring)
    454         po = cls(tokens.tokenize(), settings)
--> 455         dateobj = po._results()
    456 
    457         # correction for past, future if applicable

/usr/local/lib/python2.7/dist-packages/dateparser/parser.pyc in _results(self)
    370                                microsecond=time.microsecond))
    371 
--> 372         return self._get_datetime_obj(**params)
    373 
    374     def _correct_for_time_frame(self, dateobj):

/usr/local/lib/python2.7/dist-packages/dateparser/calendars/__init__.pyc in _get_datetime_obj(self, **params)
     84         month = params['month']
     85         if (
---> 86             not(0 < day <= self.calendar_converter.month_length(year, month)) and
     87             not(self._token_day or hasattr(self, '_token_weekday'))
     88         ):

/usr/local/lib/python2.7/dist-packages/dateparser/calendars/hijri_parser.pyc in month_length(cls, year, month)
     26         iln = (ii * 12) + 1 + (im - 1)
     27         i = iln - 16260
---> 28         mcjdn = id + UmalqurraArray.ummalqura_dat[i - 1] - 1
     29         index = UmalqurraArray.get_index(mcjdn)
     30         ml = UmalqurraArray.ummalqura_dat[index] - UmalqurraArray.ummalqura_dat[index - 1]

IndexError: list index out of range

Reproduce HijriCalendar('02-10-1004').get_date() and trace the failure through the parser to calendars/hijri_parser.pyc, especially month_length and UmalqurraArray. Determine the intended behavior for this date and add regression coverage so the conversion no longer raises IndexError.