bug#9915: 24.0.91; Info-hide-node-references does not take effect immediately

[Eli Zaretskii]

> From: Juri Linkov <juri@jurta.org>
> Cc: 9915@debbugs.gnu.org
> Date: Tue, 01 Nov 2011 11:32:35 +0200
> 
> > Use "M-x customize-variable" to customize the variable
> > Info-hide-node-references to a nil value.  Then return to the *info*
> > buffer.
> >
> > Expected result: the above line shows the full reference, as in
> >
> >   For information on extending Emacs, see *note Emacs Lisp: (elisp)Top.
> >
> > Actual result: the display does not change, until you leave this node
> > and return to it, or manually invoke revert-buffer.
> 
> Is this what you want?

This works for me, thanks.  But there seems to be a left-over problem
with this change, at least on a TTY: when I finish customizing the
value and hit RET on the "Set for current session" button, Emacs
signals an error:

   custom-variable-set: Selecting deleted buffer

The customization does take effect, this error notwithstanding.