vCard import fails on BDAY, date parsing fail

I have a collection of vCards that follow an accepted pattern of
BDAY:19000101

Dexter currently refuses to import them with this error:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 552, in __bootstrap_inner
    self.run()
  File "/usr/lib/pymodules/python2.7/dexter/backend/utilities.py", line 49, in run
    import_from_vcard_string(vstring, self.q)
  File "/usr/lib/pymodules/python2.7/dexter/backend/utilities.py", line 158, in import_from_vcard_string
    if birthdaylist[1] == u"00":
IndexError: list index out of range

http://www.rfc-editor.org/rfc/rfc2425.txt Page 12 has some sample data you could use if you're going to make your own library /test suite..