### 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.
if (in_group) {
				draw_line(Vector2(timeline->get_name_limit(), get_size().height), get_size(), linecolor, Math::round(EDSCALE));
			} else {
				draw_line(Vector2(0, get_size().height), get_size(), linecolor, Math::round(EDSCALE));
			}
			if (dropping_at != 0) {
				Color drop_color = get_theme_color(SNAME("accent_color"), SNAME("Editor"));
				if (dropping_at < 0) {
					draw_line(Vector2(0, 0), Vector2(get_size().width, 0), drop_color, Math::round(EDSCALE));
				} else {
					draw_line(Vector2(0, get_size().height), get_size(), drop_color, Math::round(EDSCALE));
				}
			}
		} break;
		case NOTIFICATION_MOUSE_ENTER:
			hovered = true;
			queue_redraw();
			break;
		case NOTIFICATION_MOUSE_EXIT:
			hovered = false;
			
			hovering_key_idx = -1;
			queue_redraw();
			[[fallthrough]];
		case NOTIFICATION_DRAG_END: {
			cancel_drop();
		} break;
	}
}
int AnimationTrackEdit::get_key_height() const {