HelmCluster cluster names get carried over to subsequent Clusters

[graingert]

import sys

from distributed.deploy import Cluster
import dask_kubernetes


def main():

    print(
        Cluster()
    )  # Cluster(e174b1b2, '<Not Connected>', workers=0, threads=0, memory=0 B)
    try:
        dask_kubernetes.HelmCluster(
            release_name="example-release", namespace="example-namespace"
        )
    except RuntimeError:
        pass  # I don't have helm installed

    print(
        Cluster()
    )  # Cluster(example-release.example-namespace, '<Not Connected>', workers=0, threads=0, memory=0 B)
    return 0


if __name__ == "__main__":
    sys.exit(main())

see also dask/distributed#5305 (comment)