Resend: [Samba] connections.tdb corruption after changing domain

[Ed Ravin]

No one responded the first time I sent this out, so I'll try again.
Samba 3.02a on Linux.  When I change the "workgroup =" line in smb.conf
and restart Samba, I get this error whenever a client tries to connect:

 Mar 19 22:02:47 myhost smbd[6861]:   claim_connection: traverse of connections.tdb failed with error Locking error.
 
The client computer gets the "resources not available" error.

Deleting connections.tdb and restarting smbd fixes the problem.
 
Is this a problem in Samba or is something wrong with my setup?
I didn't see anything in Bugzilla, should I file a bug report?