### 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
TreeItem *item = effects->get_item_at_position(p_point);
	if (!item) {
		return Variant();
	}
	Variant md = item->get_metadata(0);
	if (md.get_type() == Variant::INT) {
		Dictionary fxd;
		fxd["type"] = "audio_bus_effect";
		fxd["bus"] = get_index();
		fxd["effect"] = md;
		Label *l = memnew(Label);
		l->set_text(item->get_text(0));
		effects->set_drag_preview(l);
		return fxd;
	}
	return Variant();
}
bool EditorAudioBus::can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const {
	Dictionary d = p_data;
	if (!d.has("type") || String(d["type"]) != "audio_bus_effect") {
		return false;
	}
	TreeItem *item = effects->get_item_at_position(p_point);
	if (!item) {
		return false;
	}
	effects->set_drop_mode_flags(Tree::DROP_MODE_INBETWEEN);
	return true;
}
void EditorAudioBus::drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) {