status "unknown" on response error

What's the reason to set `status: "unknown"` when the response is not `ok`? From my understanding it should be totally fine to simply use `response.status` in that case:

https://github.com/fabien0102/openapi-codegen/blob/aac52caee5210cd4cbbc54ca0314d0e38ee79618/plugins/typescript/src/templates/fetcher.ts#L107