bug#3834: 23.0.96; font rendering issue on Mac OS X

I use the 'Terminus' font in emacs, and it seems that starting with
23.0.95 (and 23.0.96 as well), emacs always wants to render the font in
bold.  It looked perfect in 23.0.94, so something has changed since
then.

Here is a screenshot of the correct font rendering in 23.0.94.  The
buffer name on the modeline is properly bold, everything else is medium:
http://attenuated.org/emacs/emacs-23.0.94.png

Here is a screenshot of the incorrect font rendering in 23.0.96:
http://attenuated.org/emacs/emacs-23.0.96.png

Here is a copy of the font for reference:
http://antihe.ro/misc/TerminusMedium.dfont

As can be seen from the screenshot, I am setting the font with:
(set-face-attribute 'default nil :family "terminus" :height 140)

Let me know if more information is needed.

Thanks,
Greg

----

In GNU Emacs 23.0.96.1 (i386-apple-darwin9.7.0, NS apple-appkit-949.46)
  of 2009-07-11 on black.local
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: Lisp Interaction

Minor modes in effect:
   delete-selection-mode: t
   show-paren-mode: t
   auto-insert-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

Recent input:
M-x r e o <backspace> p o r t - e m a c s - b u <tab>
<tab> <tab> <return>

Recent messages:
Source file `/Users/greg/.emacs.d/swbuff.el' newer than byte-compiled  
file
Source file `/Users/greg/.emacs.d/eol-conversion.el' newer than byte- 
compiled file
Loading /Users/greg/.emacs.d/light-symbol.el (source)...done
Loading /Users/greg/.emacs.d/auto-reload.el (source)...done
Loading /Users/greg/.emacs.d/themes/color-theme-dark-blue3.el  
(source)...done
Loading /Users/greg/.emacs.d/themes/color-theme-library.el  
(source)...done
Loading /Users/greg/.emacs.d/themes/color-theme-wombat.el  
(source)...done
For information about GNU Emacs and the GNU system, type C-h C-a.