### 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 draw_minimap;
}
void TextEdit::set_minimap_width(int p_minimap_width) {
	if (minimap_width == p_minimap_width) {
		return;
	}
	minimap_width = p_minimap_width;
	_update_wrap_at_column();
	queue_redraw();
}
int TextEdit::get_minimap_width() const {
	return minimap_width;
}
int TextEdit::get_minimap_visible_lines() const {
	return _get_control_height() / (minimap_char_size.y + minimap_line_spacing);
}
void TextEdit::add_gutter(int p_at) {
	if (p_at < 0 || p_at > gutters.size()) {
		gutters.push_back(GutterInfo());
	} else {
		gutters.insert(p_at, GutterInfo());
	}
	text.add_gutter(p_at);
	_update_gutter_width();
	emit_signal(SNAME("gutter_added"));
	queue_redraw();
}
void TextEdit::remove_gutter(int p_gutter) {