When extensions are applied, and then they are manually removed from the nodes no action is taken by MCO. There is no message to the user, no alert, no degradation and the extensions are not re-installed. 

    4.18

    Always

    1. Install extensions
    2. Remove the extension from a node

$ rpm-ostree reset
$ reboot

    3. Wait for the node to be rebooted
    

    The extensions have been removed from a node and this node is not configured as expected. Nevertheless, no action is taken. 

    The admin should be informed that a node is not correctly configured, or the extensions should be re-installed.