### 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.
return true;
}
void DisplayServerWindows::enable_for_stealing_focus(OS::ProcessID pid) {
	_THREAD_SAFE_METHOD_
	AllowSetForegroundWindow(pid);
}
int DisplayServerWindows::keyboard_get_layout_count() const {
	return GetKeyboardLayoutList(0, nullptr);
}
int DisplayServerWindows::keyboard_get_current_layout() const {
	HKL cur_layout = GetKeyboardLayout(0);
	int layout_count = GetKeyboardLayoutList(0, nullptr);
	HKL *layouts = (HKL *)memalloc(layout_count * sizeof(HKL));
	GetKeyboardLayoutList(layout_count, layouts);
	for (int i = 0; i < layout_count; i++) {
		if (cur_layout == layouts[i]) {
			memfree(layouts);
			return i;
		}
	}
	memfree(layouts);
	return -1;
}
void DisplayServerWindows::keyboard_set_current_layout(int p_index) {