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bug#17893: 24.4.50; (error "Marker does not point anywhere")

From: Stephen Berman
Subject: bug#17893: 24.4.50; (error "Marker does not point anywhere")
Date: Wed, 02 Jul 2014 20:58:43 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.92 (gnu/linux) 
On Wed, 2 Jul 2014 09:08:42 -0700 (PDT) Drew Adams <drew.adams@oracle.com> 
wrote:

>> > I see.  Would a feasible enhancement be for an error backtrace to
>> > show which pre-command-hook function was invoked,
>> 
>> This is already the case.
>
> I see.  So something added `clear-temporary-map' to `pre-command-hook'
> on the fly, I guess (since I don't see it there otherwise).
>
> I guess that must be done in some C code, since I don't find any hits
> when I grep for `clear-temporary' in the Emacs Lisp code.  (I don't
> have the C code.)

It's actually called clear-transient-map ...

On Wed, 02 Jul 2014 14:24:25 -0400 Stefan Monnier <monnier@iro.umontreal.ca> 
wrote:

>> Not very easy for a user to guess (or even discover) what's going on.
>
> It's added by set-temporary-map

... set-transient-map

Steve Berman
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