[Samba] purging wrong wins entry?

[Marco Barbero]

Hi.
This morning I had to change 'netbios name' on Samba PDC.  After that
I restarted samba.   Now I have noticed I have two wins entries
pointing to same IP address, one with old netbios name, other with new
netbios name.  Deleting wins.dat and restarting samba does not solve
the issue.  Deleting entries related to old netbios name from wins.dat
and restarting samba does not solve the issue too.

What am I missing?
Thanks in advance