patch delete causes transient error on machine config apply with reboot (omni 1.9.3)

[smira]

[smira]

# machine set
machine:
  nodeLabels:
    node.kubernetes.io/role: "ci"

# machine
machine:
    nodeLabels:
       node.kubernetes.io/role:
        $patch: delete

and apply another config change which causes Talos to reboot.