Re: [Emacs-diffs] master 29c360e: Ensure redisplay after "C-x C-e"

[Eli Zaretskii]

> Date: Fri, 06 Nov 2015 17:47:49 +0200
> From: Eli Zaretskii <address@hidden>
> Cc: address@hidden
> 
> > Yes, but that was an accident.  I think what you did is add an arbitrary
> > hack to paper over this, and I think it'd be better to do it either of:
> > - live with the apparent regression, telling users that they should
> >   simply be happy to have enjoyed this accident in the past.
> 
> I don't like this alternative.  Redisplay should be correct before it
> is fast.  Users rightfully expect changes to such variables to have
> effect immediately, so not doing that looks like a bug.  How do you
> explain that, after evaluating (setq line-spacing 1.0) nothing
> happens, but as soon as you type "M-x", the new setting takes effect?

In the last sentence, I meant to ask how you explain this to the users.