Helm Users cannot be created when bucket is blank or not specified

  # (requires couchbase server 6.5.0 and higher)

  users:

    # creates an example user named 'developer'

    test-user:

      # password to use for user authentication

      # (alternatively use authSecret)

      password: password

      # optional secret to use containing user password

      authDomain: local

      #      authSecret: "my-password-secret" 

      # roles attributed to group

      roles:

        - name: bucket_admin

        - name: cluster_admin

{"level":"info","ts":1606858833.1786308,"logger":"cluster","msg":"Reconcile completed","cluster":"default/cb-helm"}

{"level":"error","ts":1606858834.0520496,"logger":"cluster","msg":"Reconciliation failed","cluster":"default/cb-helm","error":"[request failed PUT http://cb-helm-0000.cb-helm.default.svc:8091/settings/rbac/groups/test-user-cb-helm 400 Bad Request: {\"errors\":{\"roles\":\"Cannot assign roles to user because the following roles are unknown, malformed or role parameters are undefined:

⋊> ~/d/o/2.0.3 helm install --values values.yaml cb-test couchbase/couchbase-operator                                                      13:42:20

Error: CouchbaseGroup.couchbase.com "test-user-cb-helm" is invalid: spec.roles.bucket: Invalid value: "null": spec.roles.bucket in body must be of type string: "null"