RepositoryReplicas RPC fails if a replica does not exist

RepositoryReplicas RPC returns checksums of all assigned replicas of a repository. In case a repository is not replicated yet to all of the hosts, the RPC will return an error. Desired behavior would be to return output indicating a replica does not yet exist on te host. Problematic error return: https://gitlab.com/gitlab-org/gitaly/-/blob/5d557a52c40e2641d6ea1b44b60a897d0e9401e7/internal/praefect/service/info/repositories.go#L68

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information