editing the CR for default etcd Backup doesn't work

    pre-merge test -> 4.18.0-0.test-2024-10-22-063925-ci-ln-gq41mft-latest

    always

    1.enable the AutomatedBackup featuregate 
oc apply -f openshift/cluster-etcd-operator/hack/featuregate_backup.yaml 


    2.apply the CR

apiVersion: config.openshift.io/v1alpha1
kind: Backup
metadata:
  name: default
spec:
  etcd:
    schedule: "* * * * *"
    timeZone: "UTC"
    retentionPolicy:
      retentionType: RetentionNumber
      retentionNumber:
        maxNumberOfBackups: 2



     3. verify that two bakups are created in the node.

oc debug no/ip-10-0-121-85.ec2.internal
Starting pod/ip-10-0-121-85ec2internal-debug-gvvcf ...
To use host binaries, run `chroot /host`
Pod IP: 10.0.121.85
If you don't see a command prompt, try pressing enter.
sh-5.1# chroot /host
sh-5.1# cd var/lib/etcd-auto-backup/
sh-5.1# ls -lrt total 0
drwxr-xr-x. 2 root root 96 Oct 22 08:40 2024-10-22_084000
drwxr-xr-x. 2 root root 96 Oct 22 08:41 2024-10-22_084100
      

4. edit the CR.
oc edit Backup default
and change the maxNumberOfBackups from 2 to 3.
backup.config.openshift.io/default edited

oc get Backup default -oyaml
................
spec:
  etcd:
    retentionPolicy:
      retentionNumber:
        maxNumberOfBackups: 3
      retentionType: RetentionNumber
    schedule: '* * * * *'
    timeZone: UTC

    Only two backups continue to be present.

sh-5.1# ls -lrt
total 0
drwxr-xr-x. 2 root root 96 Oct 22 08:48 2024-10-22_084800
drwxr-xr-x. 2 root root 96 Oct 22 08:49 2024-10-22_084900

    Was expecting 3 backups to be present after the edit operation is successfully performed.