Extracting the CredentialsRequests for the release returns different results, based on the retrieval method. Using the "cloud" flag returns the proper set of CredentialsRequests. Relying on an "install-config", the CredentialsRequest for Ingress is missing

    4.15.15

    100%

    1. Select an OCP release (4.15.15)
    2. Create an install-config for IBM Cloud
    3. Attempt to extract the CredentialsRequests using the install-config:   oc adm release extract --from=$RELEASE_IMAGE --credentials-requests --included --install-config=<path_to_directory_with_installation_configuration>/install-config.yaml --to=<path_to_directory_for_credentials_requests>      

0000_26_cloud-controller-manager-operator_15_credentialsrequest-ibm.yaml		
0000_50_cluster-image-registry-operator_01-registry-credentials-request-ibmcos.yaml
0000_30_machine-api-operator_00_credentials-request.yaml
0000_50_cluster-storage-operator_03_credentials_request_ibm.yaml

0000_26_cloud-controller-manager-operator_15_credentialsrequest-ibm.yaml
0000_50_cluster-ingress-operator_00-ingress-credentials-request.yaml
0000_30_machine-api-operator_00_credentials-request.yaml
0000_50_cluster-storage-operator_03_credentials_request_ibm.yaml
0000_50_cluster-image-registry-operator_01-registry-credentials-request-ibmcos.yaml 

Using the "--cloud=ibmcloud" argument instead of "install-config" argument, produces the correct CredentialsRequests results. I am unsure why there is a discrepancy.