Description of problem:

For a cluster deployed using the sitecofig controller. If you detach the cluster using just ACM GUI, and then you re-import it. The ManagedCluster CR is re-created but it does not recover the labels, nor the ownership to the siteconfig controller.

If now you remove the ClusterInstance with your ZTP GitOps, it will remove everything but not the ManagedCluster. So, the cluster cannot be removed from ZTP.

Version-Release number of selected component (if applicable):

discovered on 2.14, but I guess it happens in previous and next version.

How reproducible:

Steps to Reproduce:

1. Create a cluster using a ClusterInstance CR
2. Once it is created, detach it using the ACM GUI (doing oc delete managedcluster should happen the same)
3. Re-import it.
4. It is re-imported but missing everything related to the controller, labels and the ownership.

Actual results:

Expected results:

Additional info: