fix(fcitx5): mozc suddenly gets broken

[sei40kr]

Logs

Dec 15 02:26:37 nixos systemd[1601]: Started Highly customizable Wayland bar for Sway and Wlroots based compositors..
Dec 15 02:26:38 nixos dbus-daemon[1900]: [session uid=1000 pid=1900] Activating service name='org.fcitx.Fcitx5' requested by ':1.139046' (uid=1000 pid=489095 comm="fcitx5-remote " label="kernel")
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.106979 instance.cpp:1354] Override Enabled Addons: {}
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.107041 instance.cpp:1355] Override Disabled Addons: {}
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.108772 addonmanager.cpp:189] Loaded addon wayland
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.110356 addonmanager.cpp:189] Loaded addon imselector
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.141185 addonmanager.cpp:189] Loaded addon xcb
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.144214 addonmanager.cpp:189] Loaded addon quickphrase
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.145230 addonmanager.cpp:189] Loaded addon waylandim
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.153890 addonmanager.cpp:189] Loaded addon keyboard
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.155004 addonmanager.cpp:189] Loaded addon clipboard
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.155845 addonmanager.cpp:189] Loaded addon unicode
Dec 15 02:26:38 nixos dbus-daemon[1900]: [session uid=1000 pid=1900] Successfully activated service 'org.fcitx.Fcitx5'
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.157513 addonmanager.cpp:189] Loaded addon dbus
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.160403 addonmanager.cpp:189] Loaded addon dbusfrontend
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.163678 addonmanager.cpp:189] Loaded addon fcitx4frontend
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.167863 addonmanager.cpp:189] Loaded addon ibusfrontend
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.168411 addonmanager.cpp:189] Loaded addon xim
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: I2021-12-15 02:26:38.195995 inputmethodmanager.cpp:198] Found 697 input method(s) in addon keyboard
Dec 15 02:26:38 nixos org.fcitx.Fcitx5[489099]: W2021-12-15 02:26:38.196244 inputmethodmanager.cpp:96] Group Item mozc in group Default is not valid. Removed.