### Godot version

4.0 fb10f45

### System information

Windows 10 x64

### Issue description

Behold, empty TileSet editor, with no TileMap node nor bottom button visible:
![image](https://github.com/godotengine/godot/assets/2223172/0f052770-4946-40eb-a790-a995dbe2599c)
Regression from #72277 (most likely, I didn't test)

### Steps to reproduce

1. Add some Node to your scene
2. Add a TileMap as a child
3. Select TileMap
4. Fold its parent in the scene tree
5. Restart the editor
6. The TileMap selection is restored and so is the folded node, resulting in a weird paradox

### Minimal reproduction project

N/A
StringName current_library_name;
	if (animation->has_selectable_items()) {
		String current_animation_name = animation->get_item_text(animation->get_selected());
		Ref<Animation> current_animation = player->get_animation(current_animation_name);
		if (current_animation.is_valid()) {
			current_library_name = player->find_animation_library(current_animation);
		}
	}
	List<StringName> libraries;
	player->get_animation_library_list(&libraries);
	library->clear();
	
	int index_offset = 0;
	if (!player->has_animation_library(StringName())) {
		library->add_item(String(TTR("[Global] (create)")));
		library->set_item_metadata(0, "");
		index_offset = 1;