### Godot version

v4.2.beta2.official [f8818f85e]

### System information

Windows 10, 64bit

### Issue description

Some times can't add node in visualshader editor

### Steps to reproduce

1. Open a VisualShader file for edit.
2. Click the `Add Node...` button, it will popup menu, it is OK.
3. Direct close the menu.
4. Clikd the `Add Node...` again, the menu can't popup.
![GIF](https://github.com/godotengine/godot/assets/35988767/1326c63e-3e05-4423-9ec7-7ce305b3f4f5)

### Minimal reproduction project

/
Ref<Script> scr = Ref<Script>(p_resource.ptr());
	if (scr.is_null() || scr->get_instance_base_type() != "VisualShaderNodeCustom") {
		return;
	}
	custom_scripts_to_delete.push_back(scr);
	if (!pending_custom_scripts_to_delete) {
		pending_custom_scripts_to_delete = true;
		call_deferred("_resources_removed");
	}
}
void VisualShaderEditor::_update_options_menu_deferred() {