Alex Branham <alex.branham@gmail.com> writes:

> On Thu 14 Mar 2019 at 11:00, Eli Zaretskii <eliz@gnu.org> wrote:
>
>> I think this is a documentation bug, as it doesn't describe the
>> special case of "no previous nonblank line".
>
> OK, patch attached. While looking over this I noticed the lisp reference
> manual also needed to be updated a bit so I did that as well.

I think some code needs updating in addition to the Elisp manual: