Subject: bug#64759: Broken faces

From: Juri Linkov <[email-masked]>
Date: Fri, 21 Jul 2023 09:37:30 +0300

This change broke display of `display-time-date-and-time' on the tab-bar:

  diff --git a/lisp/time.el b/lisp/time.el
  index 522bec46ac6..0184f96fcc2 100644
  --- a/lisp/time.el
  +++ b/lisp/time.el
  @@ -141,6 +141,7 @@ display-time-mail-face
   (defface display-time-date-and-time nil
     "Face for `display-time-format'."
  +  '((t (:inherit mode-line)))
     :group 'mode-line-faces
     :version "30.1")

This face is used by `tab-bar-format-global' that has nothing to do
with the mode line, so inheriting from `mode-line' makes no sense.