minikube: OCI-image load with cache load or podman-env does not Work

I have an oci-image.tar file on the local filesystem and I want to insert it into a Minikube Cluster.

https://minikube.sigs.k8s.io/docs/handbook/pushing/ calls this process Load, and states (in the table) that podman-env command and cache command support the Load.

I have minikube version v1.23.0, podman version 3.3.1 and this file downloaded locally: https://mail.aegee.org/oci-images/ldap-2021-09-12.tar . (it is an oci-archive)

$ minikube start --container-runtime=cri-o
😄  minikube v1.23.0 on Fedora 34
    ▪ MINIKUBE_ACTIVE_PODMAN=minikube
✨  Using the podman driver based on user configuration
👍  Starting control plane node minikube in cluster minikube
🚜  Pulling base image ...
E0915 20:21:48.318864  119882 cache.go:200] Error downloading kic artifacts:  not yet implemented, see issue #8426
🔥  Creating podman container (CPUs=2, Memory=2200MB) ...
❗  This container is having trouble accessing https://k8s.gcr.io
💡  To pull new external images, you may need to configure a proxy: https://minikube.sigs.k8s.io/docs/reference/networking/proxy/
🎁  Preparing Kubernetes v1.22.1 on CRI-O 1.20.3 ...
    ▪ Generating certificates and keys ...
    ▪ Booting up control plane ...
    ▪ Configuring RBAC rules ...
🔗  Configuring CNI (Container Networking Interface) ...
🔎  Verifying Kubernetes components...
    ▪ Using image gcr.io/k8s-minikube/storage-provisioner:v5
🌟  Enabled addons: storage-provisioner, default-storageclass

❗  /usr/bin/kubectl is version 1.20.5, which may have incompatibilites with Kubernetes 1.22.1.
    ▪ Want kubectl v1.22.1? Try 'minikube kubectl -- get pods -A'
🏄  Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default

$ eval $(minikube podman-env)

$ podman images 
REPOSITORY  TAG         IMAGE ID    CREATED     SIZE
$ podman pull oci-archive:ldap-2021-09-12.tar 
Getting image source signatures
Copying blob 23202de353f1 done  
Copying config 13f92300c1 done  
Writing manifest to image destination
Storing signatures
13f92300c1b0cd810bcc03a4ab8a8d7e85dfd40f051a3153d698618e70616f4e

$ podman images
REPOSITORY            TAG         IMAGE ID      CREATED     SIZE
localhost/2021-09-12  latest      13f92300c1b0  3 days ago  6.35 MB

$ podman --remote pull oci-archive:ldap-2021-09-12.tar 
Error: unsupport transport oci-archive in "oci-archive:ldap-2021-09-12.tar": only docker transport is supported

#### with podman --remote (which shall be the same as podman-remote) 
#### Loading images from oci-archive to minikube cluster does not work)

$ minikube cache add ldap-2021-09-12.tar 
❗  "minikube cache" will be deprecated in upcoming versions, please switch to "minikube image load"
❗  The image 'ldap-2021-09-12.tar' was not found; unable to add it to cache.

$ minikube cache add oci-archive:ldap-2021-09-12.tar 
❗  "minikube cache" will be deprecated in upcoming versions, please switch to "minikube image load"
❗  The image 'oci-archive:ldap-2021-09-12.tar' was not found; unable to add it to cache.

$ minikube cache list 
ldap-2021-09-12.tar
oci-archive:ldap-2021-09-12.tar 

Adding images by minikube cache add prints error on import, but minikube cache list does print the images.

Loading images with podman --remote does not work, see also https://github.com/containers/podman/issues/11593 .