[Samba] 3.0.23b -> 3.0.23c

[dovecot auth]

I portupgraded my working 3.0.23b PDC on FreeBSD 5.5 to 3.0.23c and found
that all workstations could not login.  The log file reads:

get_md4pw: Workstation PC01$: no account in domain

I ran pdbedit -L, and it returned nothing.  I use tdbsam backend; all user
accounts show up fine with 3.0.23b.  Now they are missing.  I deinstalled
3.0.23c and switched back to 3.0.23b.  Everything is then back to normal.
What's wrong with the .23c version?

Adam