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Re: emacs-lock-unlockable-modes should default to nil

From: Eli Zaretskii
Subject: Re: emacs-lock-unlockable-modes should default to nil
Date: Sat, 07 Jul 2018 12:54:03 +0300

> From: Tino Calancha <address@hidden>
> Date: Sat, 30 Jun 2018 16:40:45 +0900 (JST)
> Cc: Juanma Barranquero <address@hidden>,
>       Tino Calancha <address@hidden>
> I see the comment in the source code: the current value is due
> to compatibility with older versions.
> I was bitten today with this.  I first thought it was a
> bug; then, I realized is the result of a default setting.
> Many users would assume that their buffers are secured once they
> turn on this minor-mode, overlooking that this option does exist.
> I think the value nil is a better default to support such expectations.

The current value was set 7 years ago and released in Emacs 24.1 6
years ago.  I'm not sure this is long enough for such a radical

In any case, it is not a good situation that the doc string of
emacs-lock-mode doesn't even mention emacs-lock-unlockable-modes, so
users have no hope of learning about this variable's critical
importance unless they read the code.  So as the first step towards
perhaps changing the default in the future, I added references to this
variable to relevant doc strings.


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