CPU triggered autoscaler is not working like documented and leading to errors in the keda operator

OpenShift 4.12.30
Custom Metrics Autoscaler Operator 2.10.1-267

always

1. Install latest OpenShift 4.12
2. Install latest Custom Metrics Autoscaler Operator
3. create KedaController like documented - https://docs.openshift.com/container-platform/4.12/nodes/cma/nodes-cma-autoscaling-custom-install.html
4. create ScaledObject following the docs for "Understanding the CPU trigger" - Understanding the CPU trigger

2023-09-08T09:24:47Z	ERROR	Reconciler error	{"controller": "scaledobject", "controllerGroup": "keda.sh", "controllerKind": "ScaledObject", "ScaledObject": {"name":"cpu-scaledobject-doc","namespace":"test"}, "namespace": "test", "name": "cpu-scaledobject-doc", "reconcileID": "b71e4513-41b5-4097-89b3-5239ee4d96c6", "error": "HorizontalPodAutoscaler.autoscaling \"keda-hpa-cpu-scaledobject-doc\" is invalid: spec.metrics[0].containerResource: Required value: must populate information for the given metric source (only allowed when HPAContainerMetrics feature is enabled)"}

working autoscaling

none