force group not working with samba-4.1 (with patch in bugzilla)

[steve]

On Wed, 2013-11-20 at 07:05 -0600, Ricky Nance wrote:
> Which configuration are you using, the AD DC one or something else? With AD
> DC you can force a certain group using ACL's so this option really isn't
> relevant anymore, however I know with some of the other 4.X code the samba
> team has been moving it towards the 'DOMAIN\group' format. I think the
> reason behind this is because that is how Windows reports it. In my opinion
> it should be added to samba-tool testparm to warn the user they are doing
> something that won't work.
> 
> Ricky

Hi
Use a big hammer?

[dropbox]
path = /dropbox
read only = no

chgrp group /dropbox
chmod g+s /dropbox

May get what you want. 
Steve