Fix calling appendKnownHelper when not needed #9908

Job	Run time
lint	5m 24s
unit_test	3m 5s
build_minikube	18m 29s
functional_docker_ubuntu	12m 7s
functional_baremetal_ubuntu20_04	8m 13s
functional_docker_rootless_containerd_ubuntu	14m 5s
functional_docker_containerd_ubuntu	9m 33s
functional_podman_ubuntu	11m 36s
functional_virtualbox_macos	13m 31s
upload_all_reports	20s
	1h 36m 23s

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