[Dovecot] Headers "missing" in new CVS version

[Todd Burroughs]

We're experiencing an odd problem with dovecot "losing" headers.
This started happening with the CVS release as of July 4 and still
happens with July 12.  It was working properly June 28.

It does not happen using pine or thunderbird.

It happens using webmail (twig).

When you open the inbox, you see subject, etc.  When you open a mail,
all of the headers are gone.  Returning to the inbox, all the headers
are missing.  It seems to cache this as well.  After returning to the
older dovecot, all of the headers are missing.  Deleting the cache files
fixes this and there does not seem to be any mbox corruption.

It does not log any errors or crash.

Todd Burroughs