Possible group id bug on Tru64?

[Naccarato, Robert]

On my Tru64 4.0F machine I've installed 2.0.5a.  I added a number of users
en masse and added them all to a certain group.  It seems that Tru64 likes
to put a limit on the number of users per group definition by making
multiple group entries in /etc/group, at least when creating accounts with
adduser.  For example:

...
dudes:*:1000:user1,user2,user3,...
dudes:*:1000:user31,user32,...

To Samba, those users who appear in the second line do not belong to the
group.  Users in this second line cannot connect to certain shares because
of group permissions (valid users = @group).

I edited /etc/group by hand and simply put the two group entries into one
and now life is fine.

Is this a problem with Samba?