kustomize v4.2.0 - failing replacements tests

base.kustomization.yaml

namespace: base

configMapGenerator:
- name: blue
- name: red

replacements:
- source:
    name: blue
    fieldPath: metadata.namespace
  targets:
  - select:
      name: red
    fieldPaths:
    - data.blue-configmap
    options:
      create: true
      delimiter: "/"
      index: 0
- source:
    name: blue
    fieldPath: metadata.name
  targets:
  - select:
      name: red
    fieldPaths:
    - data.blue-configmap
    options:
      create: true
      delimiter: "/"
      index: 1

kustomization.yaml

namespace: overlay
namePrefix: overlay-
resources:
- base

output.yaml

## EXPECTED ##
apiVersion: v1
kind: ConfigMap
metadata:
  name: overlay-blue-6ct58987ht
  namespace: overlay
---
apiVersion: v1
data:
  blue-configmap: overlay/overlay-blue-6ct58987ht
kind: ConfigMap
metadata:
  name: overlay-red-dg2dg4h88t
  namespace: overlay
---
## ACTUAL ##
apiVersion: v1
kind: ConfigMap
metadata:
  name: overlay-blue-6ct58987ht
  namespace: overlay
---
apiVersion: v1
data:
  blue-configmap: base/blue
kind: ConfigMap
metadata:
  name: overlay-red-gt484k8b96
  namespace: overlay