### 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)

current_theme = "";
	script_editor_cache.instantiate();
	script_editor_cache->load(EditorPaths::get_singleton()->get_project_settings_dir().path_join("script_editor_cache.cfg"));
	completion_cache = memnew(EditorScriptCodeCompletionCache);
	restoring_layout = false;
	waiting_update_names = false;
	pending_auto_reload = false;
	auto_reload_running_scripts = true;
	members_overview_enabled = EDITOR_GET("text_editor/script_list/show_members_overview");
	help_overview_enabled = EDITOR_GET("text_editor/help/show_help_index");
	VBoxContainer *main_container = memnew(VBoxContainer);
	add_child(main_container);
	menu_hb = memnew(HBoxContainer);
	main_container->add_child(menu_hb);
	script_split = memnew(HSplitContainer);
	main_container->add_child(script_split);