rename-context missing from completion

[schollii]

1. From regular bash shell, type kubectl config rTAB and notice how rename-context is present among suggestions
2. Installl kube-shell in python 3.6 (pip install kube-shell) on Ubuntu 18.04
3. run kube-shell
4. type kubectl config rTAB: notice that rename-context is absent from the suggestions

Tried with both kubectl 1.14 and 1.18.2.