### 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)

_menu_option(FILE_NEW_TEXTFILE);
	file_dialog->set_current_dir(p_base_path);
	file_dialog->set_current_file(p_base_name);
	open_textfile_after_create = false;
}
Ref<Resource> ScriptEditor::open_file(const String &p_file) {
	List<String> extensions;
	ResourceLoader::get_recognized_extensions_for_type("Script", &extensions);
	if (extensions.find(p_file.get_extension())) {
		Ref<Script> scr = ResourceLoader::load(p_file);
		if (!scr.is_valid()) {
			EditorNode::get_singleton()->show_warning(TTR("Could not load file at:") + "\n\n" + p_file, TTR("Error!"));
			return Ref<Resource>();
		}
		edit(scr);
		return scr;
	}
	Error error;
	Ref<TextFile> text_file = _load_text_file(p_file, &error);
	if (error != OK) {
		EditorNode::get_singleton()->show_warning(TTR("Could not load file at:") + "\n\n" + p_file, TTR("Error!"));
		return Ref<Resource>();
	}
	if (text_file.is_valid()) {
		edit(text_file);
		return text_file;
	}
	return Ref<Resource>();
}
void ScriptEditor::_editor_stop() {