[Samba] pdbedit is not able to disable "Profile Path"

[shacky]

Hi all,
I'm using Samba with roaming profiles enabled, but now I need some users
with roaming profile disabled.

I'm trying to use pdbedit to disable the profile path with the command
"pdbedit -p= test" but I realise that never changes after the execution of
the command:

================================================================
root at server:/tmp# pdbedit -L -v test|grep Profile
Profile Path:         \\fileserver\profiles\test

root at server:/tmp# pdbedit -p= test
ldb_wrap open of idmap.ldb
Unix username:        test
NT username:
Account Flags:        [U          ]
User SID:             S-1-5-21-2240515488-3579295645-3631671805-1136
Primary Group SID:    S-1-5-21-2240515488-3579295645-3631671805-513
Full Name:            Test User
Home Directory:       \\fileserver\users\test
HomeDir Drive:        H:
Logon Script:
Profile Path:         \\fileserver\profiles\test
Domain:
Account desc:
Workstations:
Munged dial:
Logon time:           Fri, 15 Sep 2017 06:00:34 CEST
Logoff time:          0
Kickoff time:         Thu, 14 Sep 30828 03:48:05 CET
Password last set:    Thu, 26 Dec 2019 16:37:11 CET
Password can change:  Thu, 26 Dec 2019 16:37:11 CET
Password must change: never
Last bad password   : 0
Bad password count  : 0
Logon hours         : FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF

root at server:/tmp# pdbedit -L -v test|grep Profile
Profile Path:         \\fileserver\profiles\test
================================================================

Could you help me to understand where I'm wrong, please?

Thank you very much!
Bye