Thank you very much for pointing this out.   As I mentioned privately, I introduced the discrepancy in response to the initial message on this thread: https://srfi-email.schemers.org/srfi-72/msg/14856407/.

I've downloaded the correct, older but contemporaneous version to which you pointed me.  It's now in the repo under srfi/2005-09-14.  I updated srfi/README.org to explain why both that and the other, later version are included.

History is in the details.