The OpenShift command "oc adm migrate image-references" does not change anything

Issue

• No changes are applied when issuing oc adm migrate image-references with confirmation:

  $ oc adm migrate image-references registry.example.io/*=myregistry.internal.com/* --include=deploymentconfigs --all-namespaces=false --confirm
  summary: total=1 errors=0 ignored=0 unchanged=1 migrated=0
  

• Also, no image references have been changed:

  $ oc get dc my-dc -o yaml | grep "image:"
    - image: registry.example.com/my-project/my-image:latest