[Bug-AUCTeX] 11.84; \empty is not rendered in preview

[Ron]

Hi, 

Doing C-c C-p C-p does generate a preview, but it does not include the
\empty symbol. I expect that preview output contains at least the same
symbols as the properly type set version. 

Example test case: 

\documentclass[a4paper,10pt]{article}
%opening
\title{}
\author{}

\begin{document}
\maketitle
\begin{abstract}
\end{abstract}
\section{}
$A' \neq \empty$
\end{document}


Emacs  : GNU Emacs 23.0.0.1 (i686-pc-linux-gnu, GTK+ Version 2.10.13)
 of 2007-07-26 on some machine
Package: 11.84

current state:
==============
(setq
 AUCTeX-date "2007-01-12"
 window-system 'x
 LaTeX-version "2e"
 TeX-style-path '("style" "auto" "/home/me/elisp/auctex-11.84/auctex/style" 
"/usr/local/var/auctex")
 TeX-auto-save t
 TeX-parse-self t
 TeX-master t
 TeX-command-list '(("TeX" "%(PDF)%(tex) %S%(PDFout) \"%(mode)\\input %t\"" 
TeX-run-TeX nil
                     (plain-tex-mode ams-tex-mode texinfo-mode) :help "Run 
plain TeX")
                    ("LaTeX" "%l \"%(mode)\\input{%t}\"" TeX-run-TeX nil 
(latex-mode doctex-mode) :help "Run LaTeX")
                    ("Makeinfo" "makeinfo %t" TeX-run-compile nil 
(texinfo-mode) :help "Run Makeinfo with Info output")
                    ("Makeinfo HTML" "makeinfo --html %t" TeX-run-compile nil 
(texinfo-mode) :help
                     "Run Makeinfo with HTML output")
                    ("AmSTeX" "%(PDF)amstex %S%(PDFout) \"%(mode)\\input %t\"" 
TeX-run-TeX nil (ams-tex-mode) :help
                     "Run AMSTeX")
                    ("ConTeXt" "texexec --once --texutil %(execopts)%t" 
TeX-run-TeX nil (context-mode) :help
                     "Run ConTeXt once")
                    ("ConTeXt Full" "texexec %(execopts)%t" TeX-run-TeX nil 
(context-mode) :help
                     "Run ConTeXt until completion")
                    ("BibTeX" "bibtex %s" TeX-run-BibTeX nil t :help "Run 
BibTeX")
                    ("View" "%V" TeX-run-discard t t :help "Run Viewer")
                    ("Print" "%p" TeX-run-command t t :help "Print the file")
                    ("Queue" "%q" TeX-run-background nil t :help "View the 
printer queue" :visible TeX-queue-command)
                    ("File" "%(o?)dvips %d -o %f " TeX-run-command t t :help 
"Generate PostScript file")
                    ("Index" "makeindex %s" TeX-run-command nil t :help "Create 
index file")
                    ("Check" "lacheck %s" TeX-run-compile nil (latex-mode) 
:help "Check LaTeX file for correctness")
                    ("Spell" "(TeX-ispell-document \"\")" TeX-run-function nil 
t :help "Spell-check the document")
                    ("Clean" "TeX-clean" TeX-run-function nil t :help "Delete 
generated intermediate files")
                    ("Clean All" "(TeX-clean t)" TeX-run-function nil t :help
                     "Delete generated intermediate and output files")
                    ("Other" "" TeX-run-command t t :help "Run an arbitrary 
command"))
 )