### Godot version

4.0 beta 12 mono

### System information

MacOS 13.1, Apple M1 Pro

### Issue description

When `text_editor/external/use_external_editor` is set to true but `text_editor/external/exec_path` is not set and I create a new script and attach it to a node Godot freezes and i need to force quit the application.
Also after a restart when double clicking on the script the application freezes but I can quit normally

### Steps to reproduce

- Set Use External Editor to true in Editor Settings and leave Exec Path empty
- Create a new project with Moblie Renderer and Git Versioning in Godot
- Create a 3D Scene
- Create a gd script in the FileSystem inspector or directly attach the script to a node

### Minimal reproduction project

[New Game Project.zip](https://github.com/godotengine/godot/files/10420510/New.Game.Project.zip)

if (p_class.is_empty()) {
		return;
	}
	for (int i = 0; i < tab_container->get_tab_count(); i++) {
		EditorHelp *eh = Object::cast_to<EditorHelp>(tab_container->get_tab_control(i));
		if (eh && eh->get_class() == p_class) {
			_go_to_tab(i);
			_update_script_names();
			return;
		}
	}
	EditorHelp *eh = memnew(EditorHelp);
	eh->set_name(p_class);
	tab_container->add_child(eh);
	_go_to_tab(tab_container->get_tab_count() - 1);
	eh->go_to_class(p_class, 0);
	eh->connect("go_to_help", callable_mp(this, &ScriptEditor::_help_class_goto));
	_add_recent_script(p_class);
	_sort_list_on_update = true;
	_update_script_names();
	_save_layout();
}
void ScriptEditor::_help_class_goto(const String &p_desc) {