### Godot version

4.1.1

### System information

Linux Mint, Godot 4.1.1

### Issue description

Hi,

I've extended my own class, which extends "Node2D".
Now, in the create node menu, the icon from the "Node" class is displayed instead of the icon from the extended "Node2d"-class.

Here is a screenshot to show how it looks:
![Bildschirmfoto vom 2023-07-28 10-18-12](https://github.com/godotengine/godot/assets/34768615/378773cb-e47c-4cde-adeb-2444802058d7)

But after you create the node, the correct Icon is picked:

![Bildschirmfoto vom 2023-07-28 10-20-07](https://github.com/godotengine/godot/assets/34768615/3e8dc583-55fa-401e-a574-2d97297333a6)

Regards
abgenullt

### Steps to reproduce

Extend from a custom class and check the icon in the menu.

### Minimal reproduction project

[InheritTest.zip](https://github.com/godotengine/godot/files/12192148/InheritTest.zip)

immediate_dialog_confirmed = true;
}
bool EditorNode::immediate_confirmation_dialog(const String &p_text, const String &p_ok_text, const String &p_cancel_text) {
	ConfirmationDialog *cd = memnew(ConfirmationDialog);
	cd->set_text(p_text);
	cd->set_ok_button_text(p_ok_text);
	cd->set_cancel_button_text(p_cancel_text);
	cd->connect("confirmed", callable_mp(singleton, &EditorNode::_immediate_dialog_confirmed));
	singleton->gui_base->add_child(cd);
	cd->popup_centered();
	while (true) {
		OS::get_singleton()->delay_usec(1);
		DisplayServer::get_singleton()->process_events();
		Main::iteration();
		if (singleton->immediate_dialog_confirmed || !cd->is_visible()) {
			break;
		}
	}
	memdelete(cd);
	return singleton->immediate_dialog_confirmed;
}
void EditorNode::cleanup() {