bug#57669: 29.0.50; C-n, C-p off under long lines

[dick]

> I did the research.

Good, I believe you.  Given it took me six weeks to make those changes,
I suspect your research took at least a few hours.  So it'd be an
additional hour of your copious time (you're a trust fund kid like me,
right?) to present a minimum reproducible example of Commercial Emacs
being guilty of, and I quote, "disabling those features _always_, not
just when lines are long."

Sheesh, I even made a goshdarn youtube video explaining my approach.

You want proof?  Okay:

src/emacs -Q src/xdisp.c

I trust you'll find no gui features missing between it and GNU Emacs.  I
would further show that my changes do not include ones which, and I
quote, "are plain wrong," but it's much harder to prove the
non-existence of bugs (wouldn't that be nice) than it is for you to
prove their existence.

I was being facetious earlier about being hopping mad.  Now not as much.