test: Do not overwrite /etc/nsswitch.conf by authselect

Should fix test_more_than_one_cn.

Reviewed-by: Madhuri Upadhye <[email protected]>

src/tests/multihost/alltests/conftest.py

@@ -125,7 +125,10 @@ def setup_authselect(session_multihost):
     """
     Make sure to use sssd as authselect profile
     """
-    session_multihost.client[0].run_command("authselect select sssd --force")
+    # We should not overwrite nsswitch that is changed/pre-configured
+    session_multihost.client[0].run_command(
+        "test -L /etc/nsswitch.conf && authselect select sssd --force", raiseonerr=False
+    )
 
 
 @pytest.fixture(scope='function')