If the `currentConfig` is removed from the master node, the Machine Config Daemon will not recreate it. 

The logs will say:
~~~
W0726 23:57:35.890645 3013426 daemon.go:1097] Got an error from auxiliary tools: could not get current config from disk: open /etc/machine-config-daemon/currentconfig: no such file or directory
~~~

However, the MCD won't create that currentconfig.
Is this desired state?

The workaround is to create the correct annotation

OpenShift 4.12 and tested on 4.13

- remove the currentConfig from the node
- check the status of the MCD

1.
2.
3.

- the currentconfig is missing - stopping the MCD

- if the currentconfig is missing, MCD should reconcile based on the desiredconfig label of the node