`expected_old_oid` raises confusing error message when SHA is present in the repo, but not the latest

When an expected_old_oid is passed and the SHA is valid and present in the repo, but is not the most recent SHA, the following error message is returned:

GRPC::FailedPrecondition: 9:reference update: exit status 128. debug_error_string:{UNKNOWN:Error received from peer {grpc_message:"reference update: exit status 128", grpc_status:9, created_time:"2024-08-08T00:17:25.885517-06:00"}}

Ideally the returned error has metadata like here. But currently, it is not defined in userCommitFiles response.