deleteBackupData not work?

[Bing Ma]

Is it that I'm not using it correctly, or is there a bug? When I deleted the MBK resources, the backup files in Minio were not removed.

the mbk:
########
apiVersion: mysql.oracle.com/v2
kind: MySQLBackup
metadata:
name: a-cool-one-off-mgr0410
spec:
clusterName: mgr-0409-newop
backupProfile:
name: s3-backup-profile
dumpInstance:
dumpOptions:
storage:
s3:
bucketName: username
prefix: mgr-backup
config: s3-secret
endpoint: http://xxxx

deleteBackupData: true