codecov: dashboard redirect includes "undefined" in URL

Created by: slimsag

This repository has codecov data:

https://sourcegraph.sgdev.org/sourcegraph/enterprise@093a16521df58e6c49cf70e6a4832137e740265a/-/blob/cmd/frontend/backend/dependencies.go

Configure a codecov access token, then select:

You will be redirected to https://codecov.io/gh/enterprise/undefined which is obviously wrong (it should be https://codecov.io/gh/sourcegraph/enterprise )