bug#53698: 29.0.50; ibus input method of chinese with rime engine can't work in v27 and ibus candidate menu blink in v29

[Po Lu]

Štěpán Němec <stepnem@gmail.com> writes:

> C-S-u becomes separate again
> fcitx and XkbLayout switching breaks (the flickering issue again)
>
> toggling x-gtk-use-native-input now again goes back to state 2., 3... ad
> infinitum, state 1. (which is the one we/I want) seems unattainable at
> this point.

That's a known problem, you have to move the input focus out and in the
current frame before the `x-gtk-use-native-input' setting can take
effect.

I will fix it later today.