[Samba] samba-ad-dc.service: Got notification message from PID 27448, but reception only permitted for main PID 27410

[Roy Eastwood]

Using Louis' repo I upgraded a samba DC to version 4.14.7 on a raspberry pi running Debian Bullseye.   I noticed the above message when I checked the status of the samba-ad-dc service.   The messages were:

Aug 30 10:41:48 rpi3-dc systemd[1]: samba-ad-dc.service: Got notification message from PID 27448, but reception only permitted for main PID 27410
Aug 30 10:41:48 rpi3-dc systemd[1]: samba-ad-dc.service: Got notification message from PID 27416, but reception only permitted for main PID 27410

The two processes were as follows: 
root at rpi3-dc:~# ps ax | egrep '27416 | 27448'
  27416 ?        Ss     0:01 /usr/sbin/smbd -D --option=server role check:inhibit=yes --foreground
  27448 ?        Ss     0:01 /usr/sbin/winbindd -D --option=server role check:inhibit=yes --foreground
  28130 pts/0    S+     0:00 grep -E 27416 | 27448

Is this to be expected?

Thanks,
Roy