Re: Is M-j broken for you in Org on Emacs 27 and 28?

[Richard Lawrence <richard.lawrence@uni-tuebingen.de>]

Tim Cross <theophilusx@gmail.com> writes:

> I think something is very wrong if your Emacs 28 has org 9.3. I'm pretty
> sure the earliest version which was bundled with Emacs 28 was 9.4 - it
> is certainly 9.5 now and that is the version that will be bundled with
> it when it is released.

Fair enough -- I did think that was weird. I installed Emacs 28 as
emacs-next via Guix, which I am new to; maybe it installed a very old
build, or maybe something is screwed up in the load-path. 

Still, I think this is not relevant to the problem. I see the same
problem on Emacs 27.2 (also installed via Guix) with the built-in Org
9.4.4. I also see it on both Emacs 27.2 and 28 when I load Org
from the latest bugfix branch in git ("Org mode version 9.5.1
(release_9.5.1-13-gc91271 @ /home/rwl/src/org-mode/lisp/)").

Several other people have confirmed that they see it too -- two in this
thread, one privately to me off-list.

So I don't think it's a problem with my setup. But I'm still trying to
get clear on where the problem could be. The functions involved
(default-indent-new-line, org-comment-line-break-function, and
insert-before-markers-and-inherit) mostly haven't been modified in a
long time. What *has* changed is that M-j now calls this stack of
functions, when it used to call comment-indent-new-line (in Emacs 26).

In fact, if I run M-x default-indent-new-line in an Org buffer in Emacs
26 with the built-in Org 9.1.9, I get the same error. I think this issue
has been lurking for a while -- it's just that the new binding brought
it to the surface.

-- 
Best,
Richard