Am Di., 1. Sept. 2020 um 17:29 Uhr schrieb John Cowan <xxxxxx@ccil.org>:
>
> Also added for range->list for uniformity's sake, though probably less useful.

Is there any situation or implementation of range->list imaginable
where the result must not be modified because it would modify the
range?

If not, I'd suggest reverting back range->list to the more liberal
specification because otherwise we just see needless list copies in
user code.