private address is not unique (regression between 0.15.0 and 0.15.1)

[twz123]

Applying the following config works with v0.15.0, but fails with v0.15.1:

apiVersion: k0sctl.k0sproject.io/v1beta1
kind: Cluster
metadata:
  name: k0s-cluster
spec:
  hosts:
    - installFlags: []
      role: controller
      ssh:
        address: 10.217.196.71
        keyPath: profiles/k0s/ssh-private-key.pem
        port: 22
        user: k0s
      uploadBinary: true
    - installFlags: []
      role: worker
      ssh:
        address: 10.217.196.174
        keyPath: profiles/k0s/ssh-private-key.pem
        port: 22
        user: k0s
      uploadBinary: true
  k0s:
    config:
      spec:
        telemetry:
          enabled: false
    dynamicConfig: false

Relevant k0sctl output:

│ level=fatal msg="failed on 2 hosts:\n - [ssh] 10.217.196.71:22: privateAddress  is not unique: k0s-controller-0\n - [ssh] 10.217.196.174:22: privateAddress  is not unique: k0s-worker-0"