w3m-process-sentinel: Symbol's function definition is void: --post-body--40818

[Matt Lundin <mdl@xxxxxxxxxxxx>]

With an up-to-date emacs-w3m from cvs and emacs 24.3, I get the error
listed above whenever I try to load a web page.

Steps to repeat:
M-x w3m-goto-url
URL or Keyword (default HOME): http://www.google.com

Here's the complete backtrace:

Debugger entered--Lisp error: (void-function --post-body--40818)
  --post-body--40818((200 "text/html" "ISO-8859-1" nil nil nil "http://www.google.com/"))
  w3m-process-sentinel(#<process /usr/bin/w3m> "finished\n")

Here are my system details:

emacs-w3m-version is a variable defined in `w3m.el'.
Its value is "1.4.468"

emacs-version is a variable defined in `C source code'.
Its value is "24.3.1"

uname -a
Linux arch 3.9.4-1-ARCH #1 SMP PREEMPT Sat May 25 16:14:55 CEST 2013 x86_64 GNU/Linux

w3m -version
w3m version w3m/0.5.3, options lang=en,m17n,image,color,ansi-color,menu,cookie,ssl,ssl-verify,external-uri-loader,nntp,ipv6,alarm,mark

Best,
Matt