Bug#1024603: gnome-terminal: dose not show combining characters right

[Mr. T]

Package: gnome-terminal
Version: 3.38.3-1
Severity: important
X-Debbugs-Cc: t at treaki.tk

Dear Maintainer,


   * What led up to the situation?
    trying about whith german Umlauten encoded with combining characters
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
    i created a textfile that displays right in firefox, libreoffice and
    xterm, but wrong in gnome-terminal, gedit and konsole
   * What was the outcome of this action?
    i was confused on what software implements it right which wrong
    (guessing firefox, soffice and xterm doing it right but your modern
    open source stuff wrong, but am not sure)
   * What outcome did you expect instead?
    that all software would display it the same

see attatched screenshots and text file

thanks for looking in to this and hopefully fixing it

-- System Information:
Debian Release: 11.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.10.0-19-amd64 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-terminal depends on:
ii  dbus-user-session [default-dbus-session-bus]  1.12.24-0+deb11u1
ii  dbus-x11 [dbus-session-bus]                   1.12.24-0+deb11u1
ii  dconf-gsettings-backend [gsettings-backend]   0.38.0-2
ii  gnome-terminal-data                           3.38.3-1
ii  gsettings-desktop-schemas                     3.38.0-2
ii  libatk1.0-0                                   2.36.0-2
ii  libc6                                         2.31-13+deb11u5
ii  libdconf1                                     0.38.0-2
ii  libglib2.0-0                                  2.66.8-1
ii  libgtk-3-0                                    3.24.24-4+deb11u2
ii  libpango-1.0-0                                1.46.2-3
ii  libuuid1                                      2.36.1-8+deb11u1
ii  libvte-2.91-0                                 0.62.3-1
ii  libx11-6                                      2:1.7.2-1

Versions of packages gnome-terminal recommends:
ii  gvfs                               1.46.2-1
ii  nautilus-extension-gnome-terminal  3.38.3-1
ii  yelp                               3.38.3-1

gnome-terminal suggests no packages.

-- no debconf information
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das h?lt mich nicht auf
doch das hier ha?lt mich immer auf
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