upgrade with kubeadm managed etcd does not upgrade etcd nor renew its certs

[hafe]

Environment:

• Cloud provider or hardware configuration:

• OS (printf "$(uname -srm)\n$(cat /etc/os-release)\n"):

• Version of Ansible (ansible --version):

• Version of Python (python --version):

Kubespray version (commit) (git rev-parse --short HEAD):

09b23f9

Network plugin used:

calico

Full inventory with variables (ansible -i inventory/sample/inventory.ini all -m debug -a "var=hostvars[inventory_hostname]"):

etcd_kubeadm_enabled: true

Command used to invoke ansible:

ansible-playbook -u root upgrade-cluster.yml

Output of ansible run:

Anything else do we need to know:

etcd is not upgraded due to explicitly being disabled with kubeadm options:
--etcd-upgrade=false

I cannot find any commented reason or git history of this.

(When option is removed etcd is upgraded and certs are renewed!)