### Godot version

4.0 beta 15

### System information

Windows 10

### Issue description

It happened with both Google IME and MS-IME, and there was no problem until Beta14.
When typing Japanese characters, it is common to select a character from the suggestion window and then start typing the next character before confirming.
In this case, uncommitted characters are forcibly committed, and input of the next character begins.

**↓Beta15**

https://user-images.githubusercontent.com/186786/214753450-b493cca6-2644-4b3d-8cd2-660565cc3547.mp4

**↓Beta14**

https://user-images.githubusercontent.com/186786/214755127-dde819cc-4d63-403a-99b0-09821671f74e.mp4



### Steps to reproduce

It happened with both Google IME and MS-IME in beta15

### Minimal reproduction project

It is project independent and happens in the editor.
ERR_FAIL_COND_V(!tts, TypedArray<Dictionary>());
	return tts->get_voices();
}
void DisplayServerWindows::tts_speak(const String &p_text, const String &p_voice, int p_volume, float p_pitch, float p_rate, int p_utterance_id, bool p_interrupt) {
	ERR_FAIL_COND(!tts);
	tts->speak(p_text, p_voice, p_volume, p_pitch, p_rate, p_utterance_id, p_interrupt);
}
void DisplayServerWindows::tts_pause() {
	ERR_FAIL_COND(!tts);
	tts->pause();
}
void DisplayServerWindows::tts_resume() {
	ERR_FAIL_COND(!tts);
	tts->resume();
}
void DisplayServerWindows::tts_stop() {
	ERR_FAIL_COND(!tts);
	tts->stop();
}
void DisplayServerWindows::mouse_set_mode(MouseMode p_mode) {
	_THREAD_SAFE_METHOD_
	if (mouse_mode == p_mode) {
		
		return;
	}
	mouse_mode = p_mode;
	_set_mouse_mode_impl(p_mode);
}
DisplayServer::MouseMode DisplayServerWindows::mouse_get_mode() const {