### 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
EDITOR_2D = 0,
		EDITOR_3D,
		EDITOR_SCRIPT,
		EDITOR_ASSETLIB
	};
	enum SceneNameCasing {
		SCENE_NAME_CASING_AUTO,
		SCENE_NAME_CASING_PASCAL_CASE,
		SCENE_NAME_CASING_SNAKE_CASE
	};
	struct ExecuteThreadArgs {
		String path;
		List<String> args;
		String output;
		Thread execute_output_thread;
		Mutex execute_output_mutex;
		int exitcode = 0;
		SafeFlag done;
	};
private:
	enum MenuOptions {