[Samba] "getent passwd" works, "getent passwd username" does not

[Neil Price]

Domain member server (Debian stretch with 4.8 from the Van Belle repo)

getent passwd| grep nprice

GIBB\nprice:*:1001104:1000513::/home/GIBB/nprice:/bin/false

getent passwd GIBB\\nprice

(returns nothing)

getent passwd 1001104 also returns nothing

wbinfo -u works fine

wbinfo --uid-info 1001104
GIBB\nprice:*:1001104:1000513::/home/GIBB/nprice:/bin/false

wbinfo -i GIBB\\nprice
GIBB\nprice:*:1001104:1000513::/home/GIBB/nprice:/bin/false

log files on level 5 do not see any errors

smb.conf:

[global]
         log file = /var/log/samba/log.%m
         logging = file

         map to guest = Bad User
         max log size = 1000
         panic action = /usr/share/samba/panic-action %d
         realm = AD.GIBB.CO.ZA
         security = ADS
         server role = member server
         username map = /etc/samba/user.map
         winbind enum groups = Yes
         winbind enum users = Yes
         winbind refresh tickets = Yes
         winbind request timeout = 120
         workgroup = GIBB
         idmap config gibb : range = 1000000-1599999
         idmap config gibb : backend = rid
         idmap config * : range = 3000-7999
         idmap config * : backend = tdb