### 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
Color accent = get_theme_color(SNAME("accent_color"), SNAME("Editor"));
				accent.a *= 0.7;
				draw_rect(Rect2(Point2(), get_size()), accent, false);
			}
		} break;
		case NOTIFICATION_PROCESS: {
			if (cc != AudioServer::get_singleton()->get_bus_channels(get_index())) {
				cc = AudioServer::get_singleton()->get_bus_channels(get_index());
				_update_visible_channels();
			}
			for (int i = 0; i < cc; i++) {
				float real_peak[2] = { -100, -100 };
				bool activity_found = false;
				if (AudioServer::get_singleton()->is_bus_channel_active(get_index(), i)) {
					activity_found = true;
					real_peak[0] = MAX(real_peak[0], AudioServer::get_singleton()->get_bus_peak_volume_left_db(get_index(), i));
					real_peak[1] = MAX(real_peak[1], AudioServer::get_singleton()->get_bus_peak_volume_right_db(get_index(), i));
				}
				if (real_peak[0] > channel[i].peak_l) {
					channel[i].peak_l = real_peak[0];
				} else {
					channel[i].peak_l -= get_process_delta_time() * 60.0;
				}
				if (real_peak[1] > channel[i].peak_r) {
					channel[i].peak_r = real_peak[1];
				} else {
					channel[i].peak_r -= get_process_delta_time() * 60.0;
				}
				channel[i].vu_l->set_value(channel[i].peak_l);
				channel[i].vu_r->set_value(channel[i].peak_r);