[Dbmail] assertion failure from imapd (2.1.3)

[Joe Love]

I recently upgraded from 2.0.7 to 2.1.3, and began getting these 
errors.  I have not been able to narrow down when they occur.

Assertion failed: (object), function imap_get_partspec, file 
dm_imaputil.c, line 687.

Does this error have the potential to interrupt peices of the service?

-Joe