### 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.
AnimationPlayer *player = AnimationPlayerEditor::get_singleton()->get_player();
	if (player->has_animation(SceneStringNames::get_singleton()->RESET)) {
		return player->get_animation(SceneStringNames::get_singleton()->RESET);
	} else {
		Ref<AnimationLibrary> al;
		if (!player->has_animation_library("")) {
			al.instantiate();
			player->add_animation_library("", al);
		} else {
			al = player->get_animation_library("");
		}
		Ref<Animation> reset_anim;
		reset_anim.instantiate();
		reset_anim->set_length(ANIM_MIN_LENGTH);
		EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
		undo_redo->add_do_method(al.ptr(), "add_animation", SceneStringNames::get_singleton()->RESET, reset_anim);
		undo_redo->add_do_method(AnimationPlayerEditor::get_singleton(), "_animation_player_changed", player);
		undo_redo->add_undo_method(al.ptr(), "remove_animation", SceneStringNames::get_singleton()->RESET);
		undo_redo->add_undo_method(AnimationPlayerEditor::get_singleton(), "_animation_player_changed", player);
		return reset_anim;
	}
}
void AnimationTrackEditor::_confirm_insert_list() {