gid doesn't display correctly on SAMBA share using AD

[Len Giambrone]

Using the latest cygwin:

$ cygcheck -c cygwin
Cygwin Package Information
Package              Version        Status
cygwin               1.7.34-6       OK

I've asked my admin to update the uidNumber and gidNumber in AD.  He has 
done so:

DistinguishedName : 
CN=build,OU=GroupAccounts,OU=Users,OU=Cambridge,DC=iscinternal,DC=com

Enabled           : True

gidNumber         : 999

GivenName         : build

Name              : build

ObjectClass       : user

ObjectGUID        : 0901b540-b044-437f-a167-53e1453eab94

SamAccountName    : build

SID               : S-1-5-21-112145844-1872675854-1690816760-17189

Surname           :

uidNumber         : 56191

UserPrincipalName : build@iscinternal.com


The username displays correctly, but the group name does not:

$ ls -la foo
-rw-rw-r-- 1 build Unix_Group+999 0 Feb 25 10:52 foo

And this is confirmed by running getent:

$ getent passwd build
build:*:1065765:1049089:U-ISCINTERNAL\build,S-1-5-21-112145844-1872675854-1690816760-17189:/home/build:/bin/bash

$ getent passwd group

I've read 
https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping-nsswitch-gecos 
'til I'm blue in the face, and I think this should work.
What am I missing?  How can I debug?



-- 
-Len

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