Emacs choosing a font with no latin characters when passed a bogus -fn

[Juanma Barranquero]

Until a few weeks ago, Emacs crashed when passed a non-existent
font/fontset, like

  emacs -Q -fn "-*-nonexistent"

Now it does not crash, but I'm still getting a weird effect (as
witnessed in the font log below, and the attached image).

AFAICS, Emacs is selecting fonts (Estrangelo Edessa, Gautami, Latha,
Mangal, etc.) that do not have Latin characters. In the case shown in
the image, Emacs displays Latin characters using U+072C SIRIAC LETTER
TAW (glyph #x9A) of the following font

-outline-Estrangelo Edessa-normal-normal-normal-script-13-*-*-*-p-*-iso10646-1

If I remove Estrangelo Edessa from my system, Emacs chooses the
Gautami font (though in that case it uses more than one glyph to
display latin characters).

   Juanma




uniscribe-list: -*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  -outline-Gautami-normal-normal-normal-*-p-*-nonexistent
  -outline-Latha-normal-normal-normal-*-p-*-nonexistent
  -outline-Mangal-normal-normal-normal-*-p-*-nonexistent
  -outline-MV Boli-normal-normal-normal-*-p-*-nonexistent
  -outline-Raavi-normal-normal-normal-*-p-*-nonexistent
  -outline-Shruti-normal-normal-normal-*-p-*-nonexistent
  -outline-Tunga-normal-normal-normal-*-p-*-nonexistent
w32font-list: -*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  -outline-Gautami-normal-normal-normal-*-p-*-nonexistent
  -outline-Latha-normal-normal-normal-*-p-*-nonexistent
  -outline-Mangal-normal-normal-normal-*-p-*-nonexistent
  -outline-MV Boli-normal-normal-normal-*-p-*-nonexistent
  -outline-Raavi-normal-normal-normal-*-p-*-nonexistent
  -outline-Shruti-normal-normal-normal-*-p-*-nonexistent
  -outline-Tunga-normal-normal-normal-*-p-*-nonexistent
list: -*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  -outline-Gautami-normal-normal-normal-*-p-*-nonexistent
  -outline-Latha-normal-normal-normal-*-p-*-nonexistent
  -outline-Mangal-normal-normal-normal-*-p-*-nonexistent
  -outline-MV Boli-normal-normal-normal-*-p-*-nonexistent
  -outline-Raavi-normal-normal-normal-*-p-*-nonexistent
  -outline-Shruti-normal-normal-normal-*-p-*-nonexistent
  -outline-Tunga-normal-normal-normal-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  -outline-Gautami-normal-normal-normal-*-p-*-nonexistent
  -outline-Latha-normal-normal-normal-*-p-*-nonexistent
  -outline-Mangal-normal-normal-normal-*-p-*-nonexistent
  -outline-MV Boli-normal-normal-normal-*-p-*-nonexistent
  -outline-Raavi-normal-normal-normal-*-p-*-nonexistent
  -outline-Shruti-normal-normal-normal-*-p-*-nonexistent
  -outline-Tunga-normal-normal-normal-*-p-*-nonexistent
sort-by: -*-normal-normal-normal-*-16-*-nonexistent
  uniscribe:-outline-Estrangelo
Edessa-normal-normal-normal-script-*-p-*-nonexistent
open: -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  uniscribe:-outline-Estrangelo
Edessa-normal-normal-normal-script-16-*-p-*-nonexistent
uniscribe-list: -outline-Estrangelo Edessa-*-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
w32font-list: -outline-Estrangelo Edessa-*-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
list: -outline-Estrangelo Edessa-normal-*-normal-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
sort-by: -outline-Estrangelo
Edessa-normal-italic-normal-script-16-*-p-*-nonexistent
  uniscribe:-outline-Estrangelo
Edessa-normal-normal-normal-script-*-p-*-nonexistent
open: -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  uniscribe:-outline-Estrangelo
Edessa-normal-normal-normal-script-16-*-p-*-nonexistent
list: -*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  -outline-Gautami-normal-normal-normal-*-p-*-nonexistent
  -outline-Latha-normal-normal-normal-*-p-*-nonexistent
  -outline-Mangal-normal-normal-normal-*-p-*-nonexistent
  -outline-MV Boli-normal-normal-normal-*-p-*-nonexistent
  -outline-Raavi-normal-normal-normal-*-p-*-nonexistent
  -outline-Shruti-normal-normal-normal-*-p-*-nonexistent
  -outline-Tunga-normal-normal-normal-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  -outline-Gautami-normal-normal-normal-*-p-*-nonexistent
  -outline-Latha-normal-normal-normal-*-p-*-nonexistent
  -outline-Mangal-normal-normal-normal-*-p-*-nonexistent
  -outline-MV Boli-normal-normal-normal-*-p-*-nonexistent
  -outline-Raavi-normal-normal-normal-*-p-*-nonexistent
  -outline-Shruti-normal-normal-normal-*-p-*-nonexistent
  -outline-Tunga-normal-normal-normal-*-p-*-nonexistent
sort-by: -*-unspecified-unspecified-unspecified-*-428567-*-nonexistent
  uniscribe:-outline-Estrangelo
Edessa-normal-normal-normal-script-*-p-*-nonexistent
open: -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  uniscribe:-outline-Estrangelo
Edessa-normal-normal-normal-script-428567-*-p-*-nonexistent
list: -outline-Estrangelo Edessa-*-normal-normal-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
sort-by: -outline-Estrangelo
Edessa-light-normal-normal-script-16-*-p-*-nonexistent
  uniscribe:-outline-Estrangelo
Edessa-normal-normal-normal-script-*-p-*-nonexistent
list: -outline-Estrangelo Edessa-*-normal-normal-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
sort-by: -outline-Estrangelo
Edessa-light-normal-normal-script-16-*-p-*-nonexistent
  uniscribe:-outline-Estrangelo
Edessa-normal-normal-normal-script-*-p-*-nonexistent
list: -outline-Estrangelo Edessa-*-normal-normal-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
sort-by: -outline-Estrangelo
Edessa-bold-normal-normal-script-16-*-p-*-nonexistent
  uniscribe:-outline-Estrangelo
Edessa-normal-normal-normal-script-*-p-*-nonexistent
list: -outline-Estrangelo Edessa-normal-*-normal-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
  -outline-Estrangelo Edessa-normal-normal-normal-script-*-p-*-nonexistent
sort-by: -outline-Estrangelo
Edessa-normal-italic-normal-script-16-*-p-*-nonexistent
  uniscribe:-outline-Estrangelo
Edessa-normal-normal-normal-script-*-p-*-nonexistent

bug1.jpg
Description: JPEG image