Add test fix where user was getting Project object instead of an error

Author: xkello

server/mergin/tests/test_permissions.py

@@ -154,6 +154,7 @@ def test_permissions_require_project_by_many_uuids(client):
     assert len(items) == 2
     assert all(not isinstance(i, dict) for i in items)
 
+    Configuration.GLOBAL_READ = False
     # Second user with no access to private project
     user2 = add_user("user_batch", "password")
     login(client, user2.username, "password")