Pipelines integration fails on GH auth

After I approved GitHub’s oauth dialog it failed with this error:

SourceCodeCredential.management.cattle.io “cluster-95hf8-github-iBobik” is invalid: metadata.name: Invalid value: “cluster-95hf8-github-iBobik”: a DNS-1123 subdomain must consist of lower case alphanumeric characters, ‘-’ or ‘.’, and must start and end with an alphanumeric character (e.g. ‘example.com’, regex used for validation is ‘a-z0-9?(.a-z0-9?)*’)

v2.0.0-alpha21, fresh install