### 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 _class = shader->get_class();
		if (!shader_list->has_theme_icon(_class, SNAME("EditorIcons"))) {
			_class = "TextFile";
		}
		Ref<Texture2D> icon = shader_list->get_theme_icon(_class, SNAME("EditorIcons"));
		shader_list->add_item(text, icon);
		shader_list->set_item_tooltip(shader_list->get_item_count() - 1, path);
	}
	if (shader_tabs->get_tab_count()) {
		shader_list->select(shader_tabs->get_current_tab());
	}
	for (int i = FILE_SAVE; i < FILE_MAX; i++) {
		file_menu->get_popup()->set_item_disabled(file_menu->get_popup()->get_item_index(i), edited_shaders.is_empty());
	}
	_update_shader_list_status();
}
void ShaderEditorPlugin::_update_shader_list_status() {
	for (int i = 0; i < shader_list->get_item_count(); i++) {
		TextShaderEditor *se = Object::cast_to<TextShaderEditor>(shader_tabs->get_tab_control(i));
		if (se) {
			if (se->was_compilation_successful()) {
				shader_list->set_item_tag_icon(i, Ref<Texture2D>());
			} else {
				shader_list->set_item_tag_icon(i, shader_list->get_theme_icon(SNAME("Error"), SNAME("EditorIcons")));
			}
		}
	}
}
void ShaderEditorPlugin::_move_shader_tab(int p_from, int p_to) {