### 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
Ref<Animation> anim = player->get_animation(player->get_assigned_animation());
	if (!anim.is_valid()) {
		return;
	}
	if (!_are_onion_layers_valid()) {
		_allocate_onion_layers();
	}
	
	Dictionary canvas_edit_state;
	Dictionary spatial_edit_state;
	if (Node3DEditor::get_singleton()->is_visible()) {
		
		spatial_edit_state = Node3DEditor::get_singleton()->get_state();
		Dictionary new_state = spatial_edit_state.duplicate();
		new_state["show_grid"] = false;
		new_state["show_origin"] = false;
		Array orig_vp = spatial_edit_state["viewports"];
		Array vp;
		vp.resize(4);
		for (int i = 0; i < vp.size(); i++) {
			Dictionary d = ((Dictionary)orig_vp[i]).duplicate();
			d["use_environment"] = false;
			d["doppler"] = false;
			d["gizmos"] = onion.include_gizmos ? d["gizmos"] : Variant(false);
			d["information"] = false;
			vp[i] = d;
		}
		new_state["viewports"] = vp;