### 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
String current = _get_current();
	if (!current.is_empty()) {
		if (current == player->get_assigned_animation()) {
			player->stop(); 
		}
		ERR_FAIL_COND_EDMSG(!_validate_tracks(player->get_animation(current)), "Animation tracks may have any invalid key, abort playing.");
		player->play(current);
	}
	
	stop->set_icon(pause_icon);
}
void AnimationPlayerEditor::_play_from_pressed() {
	String current = _get_current();
	if (!current.is_empty()) {
		float time = player->get_current_animation_position();
		if (current == player->get_assigned_animation() && player->is_playing()) {
			player->stop(); 
		}
		ERR_FAIL_COND_EDMSG(!_validate_tracks(player->get_animation(current)), "Animation tracks may have any invalid key, abort playing.");
		player->seek(time);
		player->play(current);
	}
	
	stop->set_icon(pause_icon);
}
String AnimationPlayerEditor::_get_current() const {