More conservative fix for bug#37473 screws my fonts

[Colin Baxter <m43cap@yandex.com>]

Hello,

Using emacs-29.0.50, I turn off mode-line proportional fonts via

#+begin_src emacs-lisp
 (cond((= emacs-major-version 29) ;; emacs-29
 (set-face-attribute 'mode-line-active nil :inherit 'mode-line)
 (set-face-attribute 'mode-line-inactive nil :inherit 'mode-line)
 )) ;; End brackets for cond.
#+end_src

and have the setting

#+begin_src emacs-lisp
 '(mode-line ((t (:background "PaleGreen" :foreground "black"
 :weight normal))))
#+end_src

in my theme file. All worked well until commit b2d11d69dd. Now my
mode-line fonts appear to have a light setting weight - they certainly
appear washed out. If I change the weight to bold then they appear too
heavy. If I revert the commit all return to normal.

If we are to have this change, could some information be given as to how
we might return the appearance to what it used to be?

Best wishes,