iBus does not work in Discord on 22.05

[lunacd]

Describe the bug

iBus does not work in Discord on 22.05. Works fine for GNOME native text entries.

Steps To Reproduce

Steps to reproduce the behavior: Install Discord and iBus. Try to use iBus in Discord and nautilus (and everything else).

Expected behavior

iBus works in everything.

Additional context

Relevant parts of configuration.nix.

{
  i18n.defaultLocale = "en_US.UTF-8";
  i18n.inputMethod = {
    enabled = "ibus";
    ibus.engines = with pkgs.ibus-engines; [ libpinyin ];
  };

  fonts.fonts = with pkgs; [
    noto-fonts
    noto-fonts-cjk-sans
    noto-fonts-cjk-serif
  ];

  environment.systemPackages = with pkgs; [
    discord
  ];

  system.stateVersion = "22.05";
}

Might be related: https://github.com/NixOS/nixpkgs/issues/37853 and https://github.com/NixOS/nixpkgs/issues/175802.

Notify maintainers

@ldesgoui @MP2E @devins2518

Metadata

Please run nix-shell -p nix-info --run "nix-info -m" and paste the result.

[user@system:~]$ nix-shell -p nix-info --run "nix-info -m"
 - system: `"x86_64-linux"`
 - host os: `Linux 5.15.43, NixOS, 22.05 (Quokka), 22.05.379.08950a6e29c`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.8.1`
 - channels(haowenl): `""`
 - channels(root): `"nixos-22.05"`
 - nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixos`

[FliegendeWurst]

NixOS 22.05 is no longer supported. Does the issue still occur on 23.05 or unstable?