The deleting namespaces in a Hypershift hosted cluster using Microsoft Entra ID as external OIDC gets stuck in Terminating state. 

MC 4.16.0-0.nightly-2024-03-06-073110 + HC 4.16.0-0.nightly-2024-03-06-073110

1. Create a namespace
2. Delete it

fxie-mac:hypershift fxie$ oc get ns test-ns
NAME      STATUS        AGE
test-ns   Terminating   23m

fxie-mac:hypershift fxie$ oc get ns test-ns -o yaml
apiVersion: v1
kind: Namespace
metadata:
  annotations:
    openshift.io/sa.scc.mcs: s0:c26,c15
    openshift.io/sa.scc.supplemental-groups: 1000680000/10000
    openshift.io/sa.scc.uid-range: 1000680000/10000
  creationTimestamp: "2024-03-07T06:28:30Z"
  deletionTimestamp: "2024-03-07T06:28:44Z"
  labels:
    kubernetes.io/metadata.name: test-ns
    pod-security.kubernetes.io/audit: restricted
    pod-security.kubernetes.io/audit-version: v1.24
    pod-security.kubernetes.io/enforce: restricted
    pod-security.kubernetes.io/enforce-version: v1.24
    pod-security.kubernetes.io/warn: restricted
    pod-security.kubernetes.io/warn-version: v1.24
  name: test-ns
  resourceVersion: "309972"
  uid: 39e26607-c7de-4bf2-963a-218b54523979
spec:
  finalizers:
  - kubernetes
status:
  conditions:
  - lastTransitionTime: "2024-03-07T06:28:49Z"
    message: 'Discovery failed for some groups, 2 failing: unable to retrieve the
      complete list of server APIs: oauth.openshift.io/v1: stale GroupVersion discovery:
      oauth.openshift.io/v1, user.openshift.io/v1: stale GroupVersion discovery: user.openshift.io/v1'
    reason: DiscoveryFailed
    status: "True"
    type: NamespaceDeletionDiscoveryFailure
  - lastTransitionTime: "2024-03-07T06:28:50Z"
    message: All legacy kube types successfully parsed
    reason: ParsedGroupVersions
    status: "False"
    type: NamespaceDeletionGroupVersionParsingFailure
  - lastTransitionTime: "2024-03-07T06:28:50Z"
    message: All content successfully deleted, may be waiting on finalization
    reason: ContentDeleted
    status: "False"
    type: NamespaceDeletionContentFailure
  - lastTransitionTime: "2024-03-07T06:28:50Z"
    message: All content successfully removed
    reason: ContentRemoved
    status: "False"
    type: NamespaceContentRemaining
  - lastTransitionTime: "2024-03-07T06:28:50Z"
    message: All content-preserving finalizers finished
    reason: ContentHasNoFinalizers
    status: "False"
    type: NamespaceFinalizersRemaining
  phase: Terminating    

Namespace deleted.