Marc Nieper-Wißkirchen <xxxxxx@gmail.com> writes:

> Hi Zhu,
>
> thank you very much for your report. Indeed, the reference
> implementation should expand into `(let () b1 b2 ...)' in the first
> case.
>
> Would you mind opening a pull request?
>
> Thanks,
>
> Marc

I've opened PR at https://github.com/scheme-requests-for-implementation/srfi-226/pull/11
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Zihao