[Dovecot] \0\n at end of lines

Since upgrading to -test11, mail fetched from imap has every line terminated with a nul and a newline ("\0\n"). This also happens with -test12. It seems to happen with both mbox and maildir.

I'm running on NetBSD/sparc (NetBSD-current as of April 1, 1.6Q).

If it matters, I have "mail_save_crlf" set to "no" and "mail_read_mmaped" also set to "no". I can't find any other options that look like they could be relevant.

Any ideas?

Thanks,

mike