bug#2891: 23.0.92; 'Save Options' does not save font setting

I customise the font in Emacs.app by using ns-popup-font-panel and then
Menu > Options > Save Options. I check the custom file to find the no
options related to font are saved. I seem mto recall that font setting
is supposed to be saved.

In GNU Emacs 23.0.92.1 (i386-apple-darwin9.6.0, NS apple-appkit-949.43)
 of 2009-04-01 on 64-71-7-219.static.wiline.com
Windowing system distributor `Apple', version 10.3.949
configured using `configure  '--with-ns''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  diff-auto-refine-mode: t
  paredit-mode: t
  dired-omit-mode: t
  recentf-mode: t
  icomplete-mode: t
  savehist-mode: t
  display-time-mode: t
  xterm-mouse-mode: t
  delete-selection-mode: t
  global-auto-revert-mode: t
  minibuffer-depth-indicate-mode: t
  which-function-mode: t
  show-paren-mode: t
  rcirc-track-minor-mode: t
  shell-dirtrack-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t