Bug#903393: [initramfs-tools] update-initramfs -u warns: Unknown X keysym "dead_belowmacron"

[xiscu <xiscu@email.de>]

Package: console-setup
Version: 1.194
Followup-For: Bug #903393

Dear Developers,
I'm able to reproduce it also on 1.194:

# apt policy console-setup
console-setup:
  Installed: 1.194
  Candidate: 1.194
  Version table:
 *** 1.194 900
        900 http://ftp.de.debian.org/debian testing/main amd64 Packages
         10 http://ftp.de.debian.org/debian sid/main amd64 Packages
        100 /var/lib/dpkg/status

# update-initramfs -u || echo "Failed"
update-initramfs: Generating /boot/initrd.img-5.4.0-4-amd64
WARNING: Unknown X keysym "dead_belowmacron"
WARNING: Unknown X keysym "dead_belowmacron"
WARNING: Unknown X keysym "dead_belowmacron"
WARNING: Unknown X keysym "dead_belowmacron"

Regards,
xiscu

-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (900, 'testing'), (10, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 5.4.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages console-setup depends on:
ii  console-setup-linux     1.194
ii  debconf                 1.5.73
ii  keyboard-configuration  1.194
ii  xkb-data                2.29-2

console-setup recommends no packages.

Versions of packages console-setup suggests:
ii  locales   2.30-2
ii  lsb-base  11.1.0

Versions of packages keyboard-configuration depends on:
ii  debconf                 1.5.73
ii  liblocale-gettext-perl  1.07-4

Versions of packages console-setup-linux depends on:
ii  init-system-helpers     1.57
ii  initscripts             2.96-3
ii  kbd                     2.0.4-4
ii  keyboard-configuration  1.194

console-setup-linux suggests no packages.

Versions of packages console-setup is related to:
pn  console-common        <none>
pn  console-data          <none>
pn  console-tools         <none>
pn  gnome-control-center  <none>
ii  kbd                   2.0.4-4
ii  systemd               244.3-1

-- debconf information:
* keyboard-configuration/compose: No compose key
* keyboard-configuration/altgr: The default for the keyboard layout
* keyboard-configuration/optionscode:
  console-setup/use_system_font:
* keyboard-configuration/variantcode:
  console-setup/framebuffer_only:
* console-setup/fontsize-fb47: 8x18
* keyboard-configuration/switch: No temporary switch
  keyboard-configuration/unsupported_options: true
* keyboard-configuration/xkb-keymap: de
  console-setup/store_defaults_in_debconf_db: true
  keyboard-configuration/ctrl_alt_bksp: false
  console-setup/fontsize-text47: 8x18
* keyboard-configuration/layout:
  keyboard-configuration/unsupported_config_options: true
* keyboard-configuration/other:
* keyboard-configuration/model: Generic 105-key PC (intl.)
* keyboard-configuration/layoutcode: de
* keyboard-configuration/variant: German
* console-setup/fontface47: Fixed
* console-setup/codeset47: # Latin1 and Latin5 - western Europe and Turkic languages
* keyboard-configuration/modelcode: pc105
  debian-installer/console-setup-udeb/title:
* keyboard-configuration/toggle: No toggling
* console-setup/charmap47: UTF-8
  console-setup/codesetcode: Lat15
  keyboard-configuration/unsupported_layout: true
* keyboard-configuration/store_defaults_in_debconf_db: true
  console-setup/guess_font:
  console-setup/fontsize: 8x18
  keyboard-configuration/unsupported_config_layout: true