bug#66737: 30.0.50; Unexpected combination of double quote and acute accent

[Markus Triska]

Eli Zaretskii <eliz@gnu.org> writes:

> Try another font.  On my system, the display is like you expect.
>
> If you go to the letter I and type "C-u C-x =", what does Emacs say in
> the *Help* buffer?

Please find the buffer content below.

Personally, I found that the DejaVu Sans Mono font works very well for
many use cases, and I would like to keep using it. Is there any way to
make it render this as intended?

Thank you and all the best,
Markus


             position: 295 of 324 (91%), column: 0
            character: Ι (displayed as Ι) (codepoint 921, #o1631, #x399)
              charset: unicode-bmp (Unicode Basic Multilingual Plane 
(U+0000..U+FFFF))
code point in charset: 0x0399
               script: greek
               syntax: w        which means: word
             category: .:Base, G:2-byte Greek, L:Strong L2R, c:Chinese, 
g:Greek, h:Korean, j:Japanese
             to input: type "C-x 8 RET 399" or "C-x 8 RET GREEK CAPITAL LETTER 
IOTA"
          buffer code: #xCE #x99
            file code: #xCE #x99 (encoded by coding system utf-8-unix)
              display: composed to form "Ϊ́" (see below)

Composed with the following character(s) "̈́" using this font:
  ftcrhb:-PfEd-DejaVu Sans Mono-regular-normal-normal-*-20-*-*-*-m-0-iso10646-1
by these glyphs:
  [0 2 921 760 12 1 11 18 0 nil]
  [0 2 776 649 12 4 10 16 -12 [0 0 0]]
with these character(s):
  ̈ (#x308) COMBINING DIAERESIS
  ́ (#x301) COMBINING ACUTE ACCENT

Character code properties: customize what to show
  name: GREEK CAPITAL LETTER IOTA
  general-category: Lu (Letter, Uppercase)
  decomposition: (921) ('Ι')

There are text properties here:
  fontified            t

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