Re: Emacs bug #23794; sort-line behavior regressed from prior Emacs versions

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sat, 18 Jun 2016 20:26:52 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: emacs-devel@gnu.org
> 
> > From: Robert Weiner <rsw@gnu.org>
> > Date: Sat, 18 Jun 2016 13:01:54 -0400
> > 
> > I would like this to be considered for marking as a blocking issue on the next release, so that the patch may be
> > applied and users do not experience sort-line problems.. A patch was provided which should be compatible
> > with any tests available for sort-lines. The patch makes Emacs behave as it did before Emacs outlines moved
> > to overlays for outlining and away from \r characters to denote hidden lines, that is sort-lines works on visible
> > lines not invisible ones. Please let me know your decision after discussion. Thanks, Bob
> 
> Sorry, but I disagree.  A new feature can never block a release.

I see that you consider this a regression.  But the change you refer
to was in Emacs 22.1, released 9 years ago, so we've lived with this
long enough to consider your proposal a new feature.  I also think
that your proposed change goes farther than just restoring that old
behavior, because outline and its derivatives are not the only modes
that use invisible text.