### 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 (languages.has(scr->get_language()->get_name())) {
				se->set_syntax_highlighter(highlighter);
				highlighter_set = true;
			}
		}
	}
	tab_container->add_child(se);
	if (p_grab_focus) {
		se->enable_editor(this);
	}
	
	
	se->set_meta("_edit_res_path", p_resource->get_path());
	se->set_tooltip_request_func(callable_mp(this, &ScriptEditor::_get_debug_tooltip));
	if (se->get_edit_menu()) {
		se->get_edit_menu()->hide();
		menu_hb->add_child(se->get_edit_menu());
		menu_hb->move_child(se->get_edit_menu(), 1);
	}
	if (p_grab_focus) {
		_go_to_tab(tab_container->get_tab_count() - 1);
		_add_recent_script(p_resource->get_path());
	}
	if (script_editor_cache->has_section(p_resource->get_path())) {
		se->set_edit_state(script_editor_cache->get_value(p_resource->get_path(), "state"));
	}
	_sort_list_on_update = true;
	_update_script_names();
	_save_layout();
	se->connect("name_changed", callable_mp(this, &ScriptEditor::_update_script_names));