### 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.
int clip_left = timeline->get_name_limit();
	int clip_right = get_size().width - timeline->get_buttons_width();
	if (p_rect.position.x > clip_right) {
		return;
	}
	if (p_rect.position.x + p_rect.size.x < clip_left) {
		return;
	}
	Rect2 clip = Rect2(clip_left, 0, clip_right - clip_left, get_size().height);
	draw_rect(clip.intersection(p_rect), p_color, p_filled);
}
void AnimationTrackEdit::draw_bg(int p_clip_left, int p_clip_right) {
}
void AnimationTrackEdit::draw_fg(int p_clip_left, int p_clip_right) {