If you run sync-users to add additional users, you get an error:
UserCreate # albert-superadmin: login=albert-superadmin, fullname=albert-superadmin --> -6 Login albert-superadmin already exists.
Some errors were found. Changes have been rolled back.
You need to invoke like this:
/app/code/scripts/user# php sync_users_ldap2dolibarr.php commitiferror -y
Errors found but we validate despite this