The ns2/managed1.conf file is created by the setup.sh script. Then, in the tests.sh script it is moved to ns2/managed.conf. The latter file name is in mkeys extra_artifacts, but the former one is not. This is a problem when pytest is started with the --setup-only option as it only runs the setup.sh script (e.g., in the cross-version-config-tests CI job) and thus failing the "Unexpected files found" assertion.