### 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
if (player == p_pl && is_visible_in_tree()) {
		_update_player();
		if (blend_editor.dialog->is_visible()) {
			_animation_blend(); 
		}
		if (library_editor->is_visible()) {
			library_editor->update_tree();
		}
	}
}
void AnimationPlayerEditor::_animation_libraries_updated() {