Description of problem:

$subject, looks like both CHECKSUM files for 8-stream and 9-stream are now empty after a recent change around the 6th. This breaks some of our periodic automation in the kubevirt containerdisks project:

periodic-containerdisks-push-nightly failing with error introspecting artifact \"centos-stream:8\": no candidates for version \"8\" and variant \"GenericCloud\" found"
https://github.com/kubevirt/containerdisks/issues/59

https://prow.ci.kubevirt.io/job-history/gs/kubevirt-prow/logs/periodic-containerdisks-push-nightly

https://github.com/kubevirt/containerdisks/blob/4ffd40fc7822fbd80c0cc83cca8a2fc50deda251/artifacts/centosstream/centos-stream.go#L39-L87

Happy to change this logic if it isn't returning but I thought it best to ask first.

Additional info:

Initially written up as https://pagure.io/centos-infra/issue/1128 but redirected here.