### 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
undo_redo->add_undo_method(al.ptr(), "remove_animation", new_name);
			undo_redo->add_do_method(this, "_animation_player_changed", player);
			undo_redo->add_undo_method(this, "_animation_player_changed", player);
			if (!animation->has_selectable_items()) {
				undo_redo->add_do_method(this, "_start_onion_skinning");
				undo_redo->add_undo_method(this, "_stop_onion_skinning");
			}
			if (lib_added) {
				undo_redo->add_undo_method(player, "remove_animation_library", "");
			}
			undo_redo->commit_action();
			if (library_name != "") {
				library_name = library_name + "/";
			}
			_select_anim_by_name(library_name + new_name);
		} break;
		case TOOL_DUPLICATE_ANIM: {
			String current = animation->get_item_text(animation->get_selected());
			Ref<Animation> anim = player->get_animation(current);
			Ref<Animation> new_anim = _animation_clone(anim);
			new_anim->set_name(new_name);
			String library_name;
			Ref<AnimationLibrary> al;
			if (library->is_visible()) {
				library_name = library->get_item_metadata(library->get_selected());
				
				if (player->has_animation_library(library_name)) {
					al = player->get_animation_library(library_name);
				}
			} else {