### 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.
const Ref<Texture2D> type_icons[9] = {
		get_theme_icon(SNAME("KeyValue"), SNAME("EditorIcons")),
		get_theme_icon(SNAME("KeyTrackPosition"), SNAME("EditorIcons")),
		get_theme_icon(SNAME("KeyTrackRotation"), SNAME("EditorIcons")),
		get_theme_icon(SNAME("KeyTrackScale"), SNAME("EditorIcons")),
		get_theme_icon(SNAME("KeyTrackBlendShape"), SNAME("EditorIcons")),
		get_theme_icon(SNAME("KeyCall"), SNAME("EditorIcons")),
		get_theme_icon(SNAME("KeyBezier"), SNAME("EditorIcons")),
		get_theme_icon(SNAME("KeyAudio"), SNAME("EditorIcons")),
		get_theme_icon(SNAME("KeyAnimation"), SNAME("EditorIcons"))
	};
	return type_icons[animation->track_get_type(track)];
}
String AnimationTrackEdit::get_tooltip(const Point2 &p_pos) const {