Duplicated custom resource metrics when exposed for builtin type

[grzesuav]

What happened:

Wanted to expose additional information for storageclass, expanded the config

    kind: CustomResourceStateMetrics
    spec:
      resources:
        - groupVersionKind:
            group: storage.k8s.io
            kind: StorageClass
            version: v1
          metricNamePrefix: kube_storageclass
          metrics:
            - name: "parameters"
              help: "StorageClass parameters"
              each:
                type: Info
                info:
                  labelsFromPath:
                    skuName: [parameters, skuName]
                    storageclass: [metadata, name]

I noticed that they are exposed twice, which makes it impossible to be scraped by prometheus (metrics are duplicated)

# HELP kube_storageclass_parameters StorageClass parameters
# TYPE kube_storageclass_parameters info
kube_storageclass_parameters{customresource_group="storage.k8s.io",customresource_kind="StorageClass",customresource_version="v1",storageclass="standard"} 1
# HELP kube_storageclass_parameters StorageClass parameters
# TYPE kube_storageclass_parameters info
kube_storageclass_parameters{customresource_group="storage.k8s.io",customresource_kind="StorageClass",customresource_version="v1",storageclass="standard"} 1

What you expected to happen:

Metrics are exposed once

How to reproduce it (as minimally and precisely as possible):

Use the config provided with k-s-m and kind cluster

Anything else we need to know?: Full logs

I0412 11:54:47.701990       1 wrapper.go:98] "Starting kube-state-metrics"
I0412 11:54:47.702368       1 builder.go:192] "The internal resource store already exists and is overridden by a custom resource store with the same name, please make sure it meets your expectation" registryName="storageclasses"
I0412 11:54:47.702518       1 server.go:186] "Used default resources"
I0412 11:54:47.702577       1 types.go:184] "Using all namespaces"
I0412 11:54:47.702660       1 server.go:219] "Metric allow-denylisting" allowDenyStatus="Including the following lists that were on allowlist: kube_deployment_labels, kube_pod_labels, kube_storageclass_labels, kube_storageclass_parameters"
W0412 11:54:47.702744       1 client_config.go:618] Neither --kubeconfig nor --master was specified.  Using the inClusterConfig.  This might not work.
I0412 11:54:47.703382       1 server.go:364] "Tested communication with server"
I0412 11:54:47.710477       1 server.go:369] "Run with Kubernetes cluster version" major="1" minor="26" gitVersion="v1.26.3" gitTreeState="clean" gitCommit="9e644106593f3f4aa98f8a84b23db5fa378900bd" platform="linux/amd64"
I0412 11:54:47.710870       1 server.go:370] "Communication with server successful"
I0412 11:54:47.711399       1 server.go:316] "Started metrics server" metricsServerAddress="[::]:8080"
I0412 11:54:47.711684       1 server.go:74] levelinfomsgListening onaddress[::]:8080
I0412 11:54:47.711779       1 server.go:74] levelinfomsgTLS is disabled.http2falseaddress[::]:8080
I0412 11:54:47.711911       1 metrics_handler.go:99] "Autosharding disabled"
I0412 11:54:47.713339       1 server.go:305] "Started kube-state-metrics self metrics server" telemetryAddress="[::]:8081"
I0412 11:54:47.713536       1 server.go:74] levelinfomsgListening onaddress[::]:8081
I0412 11:54:47.713564       1 server.go:74] levelinfomsgTLS is disabled.http2falseaddress[::]:8081
I0412 11:54:47.714317       1 custom_resource_metrics.go:79] "Custom resource state added metrics" familyNames=[kube_storageclass_parameters]
I0412 11:54:47.714778       1 custom_resource_metrics.go:79] "Custom resource state added metrics" familyNames=[kube_storageclass_parameters]

Environment:

• kube-state-metrics version: 2.8.0
• Kubernetes version (use kubectl version): 1.25 and 1.26
• Cloud provider or hardware configuration: AKS and local - kind
• Other info: