Issues in kube-state-metrics dev-setup

I saw a few (potential) issues with kube-state-metrics when running our dev-setup. Not sure if they are upstream issues or if they are related to our configuration.

1. Custom resource state added metrics is logged twice for each metric

For example:

I0703 11:33:29.295822       1 custom_resource_metrics.go:79] "Custom resource state added metrics" familyNames=[capi_clusterclass_info capi_clusterclass_created capi_clusterclass_annotation_paused capi_clusterclass_status_condition capi_clusterclass_status_condition_last_transition_time capi_clusterclass_owner]
I0703 11:33:29.295883       1 custom_resource_metrics.go:79] "Custom resource state added metrics" familyNames=[capi_clusterclass_info capi_clusterclass_created capi_clusterclass_annotation_paused capi_clusterclass_status_condition capi_clusterclass_status_condition_last_transition_time capi_clusterclass_owner]

2. There are a lot of errors/warnings (?) in the kube-state-metric logs e.g. when creating a cluster

E0703 11:37:51.841041       1 registry_factory.go:649] "capi_kubeadmconfig_status_condition" err="[status,conditions]: expected value for path to be string, got <nil>"
E0703 11:37:51.841064       1 registry_factory.go:649] "capi_kubeadmconfig_status_condition_last_transition_time" err="[status,conditions]: got nil while resolving path"
E0703 11:37:51.841081       1 registry_factory.go:649] "capi_kubeadmconfig_status_condition" err="[status,conditions]: expected value for path to be string, got <nil>"
E0703 11:37:51.841096       1 registry_factory.go:649] "capi_kubeadmconfig_status_condition_last_transition_time" err="[status,conditions]: got nil while resolving path"

Not sure if they are expected. I think this would become very noisy with a few hundreds of clusters.

3. Metrics dont' work with an empy labelsFromPath. I had to work around this in a few cases because we didn't have any metric-specific labels otherwise, e.g.: https://github.com/kubernetes-sigs/cluster-api/blob/39b2431b11863456818837fc5416cba75d99ecd7/hack/observability/kube-state-metrics/crd-config.yaml#L25C1-L26