OCPBUGS-3513 removed manifestsConfigMapRef instead of deprecating it. Now all existing SNOs are throwing error via ArgoCD and blocking all syncs

e.g 
admission webhook "agentclusterinstallvalidators.admission.agentinstall.openshift.io" denied the request: Attempted to change AgentClusterInstall.Spec which is immutable after install started, except for ClusterMetadata fields. Unsupported change: ManifestsConfigMapRef: (&LocalObjectReference{Name:cnfde31,} => nil) ManifestsConfigMapRefs: ([] => [{Name:cnfde31}])

    

4.14

Always

1. Have a cluster installed using 4.13 ztp container
2. Update ztp container to 4.14   
3. see error from Argocd

Allow sync and no error for existing clusters