Invalid CN name is not bubbled up in the CSR

   Invalid CN is not bubbled up in the CR 

    4.15.0-rc7

    always

# generate a key with invalid CN
openssl genrsa -out myuser4.key 2048
openssl req -new -key myuser4.key -out myuser4.csr -subj "/CN=baduser/O=system:masters"
# get cert in the CSR
# apply the CSR
# Status remains in Accepted, but it is not Issued
% oc get csr | grep 29ecg6n5bkugrh6io4his24ser3bt16n-5-customer-break-glass-csr
29ecg6n5bkugrh6io4his24ser3bt16n-5-customer-break-glass-csr   4m29s   hypershift.openshift.io/ocm-integration-29ecg6n5bkugrh6io4his24ser3bt16n-ad-int1.customer-break-glass   system:admin                                                                60m                 Approved
# No status in the CSR status:
  conditions:
  - lastTransitionTime: "2024-02-16T14:06:41Z"
    lastUpdateTime: "2024-02-16T14:06:41Z"
    message: The requisite approval resource exists.
    reason: ApprovalPresent
    status: "True"
    type: Approved
# pki controller shows the error
 oc logs control-plane-pki-operator-bf6d75d5f-h95rf -n ocm-integration-29ecg6n5bkugrh6io4his24ser3bt16n-ad-int1 | grep "29ecg6n5bkugrh6io4his24ser3bt16n-5-customer-break-glass-csr"
I0216 14:06:41.842414       1 event.go:298] Event(v1.ObjectReference{Kind:"Deployment", Namespace:"ocm-integration-29ecg6n5bkugrh6io4his24ser3bt16n-ad-int1", Name:"control-plane-pki-operator", UID:"b63dbaa9-18f7-4ee6-8473-8a38bdb6f2df", APIVersion:"apps/v1", ResourceVersion:"", FieldPath:""}): type: 'Normal' reason: 'CertificateSigningRequestApproved' "29ecg6n5bkugrh6io4his24ser3bt16n-5-customer-break-glass-csr" in is approved
I0216 14:06:41.848623       1 event.go:298] Event(v1.ObjectReference{Kind:"Deployment", Namespace:"ocm-integration-29ecg6n5bkugrh6io4his24ser3bt16n-ad-int1", Name:"control-plane-pki-operator", UID:"b63dbaa9-18f7-4ee6-8473-8a38bdb6f2df", APIVersion:"apps/v1", ResourceVersion:"", FieldPath:""}): type: 'Normal' reason: 'CertificateSigningRequestInvalid' "29ecg6n5bkugrh6io4his24ser3bt16n-5-customer-break-glass-csr" is invalid: invalid certificate request: subject CommonName must begin with "system:customer-break-glass:"     

    status in the CR show failed and the error