### Godot version

4.0.dev

### System information

win11，core i7 13700,  GTX4090

### Issue description

Just look at this gif.

![screenshots](https://user-images.githubusercontent.com/1620585/225354749-6ea17059-95b2-45e0-9765-8505e92726eb.gif)

It seems that it was block by Static Type Checking.

![image](https://user-images.githubusercontent.com/1620585/225362874-507ff0ec-c6d8-4a25-9a16-89db1885ad02.png)

If it's right.

Why it doesn't just disable other option except for String and StringName?

### Steps to reproduce

1. first select string type
2. input a text
3. change type
4. change back to string  -- it don't work
5. change to stringname -- it works
6. change back to string -- it works

### Minimal reproduction project

I think it don't need reproduction project.
Size2 ms = add_track->get_minimum_size();
	Ref<Font> font = get_theme_font(SNAME("font"), SNAME("Label"));
	int font_size = get_theme_font_size(SNAME("font_size"), SNAME("Label"));
	ms.height = MAX(ms.height, font->get_height(font_size));
	ms.width = get_buttons_width() + add_track->get_minimum_size().width + get_theme_icon(SNAME("Hsize"), SNAME("EditorIcons"))->get_width() + 2;
	return ms;
}
void AnimationTimelineEdit::set_zoom(Range *p_zoom) {
	zoom = p_zoom;
	zoom->connect("value_changed", callable_mp(this, &AnimationTimelineEdit::_zoom_changed));
}
void AnimationTimelineEdit::set_track_edit(AnimationTrackEdit *p_track_edit) {
	track_edit = p_track_edit;
}
void AnimationTimelineEdit::set_play_position(float p_pos) {
	play_position_pos = p_pos;
	play_position->queue_redraw();
}
float AnimationTimelineEdit::get_play_position() const {