### 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)

const int child_count = tab_container->get_tab_count();
	for (int i = 0; i < child_count; i++) {
		if (Object::cast_to<ScriptEditorBase>(tab_container->get_tab_control(i))) {
			return true;
		}
	}
	return false;
}
void ScriptEditor::_prepare_file_menu() {
	PopupMenu *menu = file_menu->get_popup();
	const bool current_is_doc = _get_current_editor() == nullptr;
	menu->set_item_disabled(menu->get_item_index(FILE_REOPEN_CLOSED), previous_scripts.is_empty());
	menu->set_item_disabled(menu->get_item_index(FILE_SAVE), current_is_doc);
	menu->set_item_disabled(menu->get_item_index(FILE_SAVE_AS), current_is_doc);
	menu->set_item_disabled(menu->get_item_index(FILE_SAVE_ALL), !_has_script_tab());
	menu->set_item_disabled(menu->get_item_index(FILE_TOOL_RELOAD_SOFT), current_is_doc);
	menu->set_item_disabled(menu->get_item_index(FILE_COPY_PATH), current_is_doc);
	menu->set_item_disabled(menu->get_item_index(SHOW_IN_FILE_SYSTEM), current_is_doc);
	menu->set_item_disabled(menu->get_item_index(WINDOW_PREV), history_pos <= 0);
	menu->set_item_disabled(menu->get_item_index(WINDOW_NEXT), history_pos >= history.size() - 1);
	menu->set_item_disabled(menu->get_item_index(FILE_CLOSE), tab_container->get_tab_count() < 1);
	menu->set_item_disabled(menu->get_item_index(CLOSE_ALL), tab_container->get_tab_count() < 1);
	menu->set_item_disabled(menu->get_item_index(CLOSE_OTHER_TABS), tab_container->get_tab_count() <= 1);
	menu->set_item_disabled(menu->get_item_index(CLOSE_DOCS), !_has_docs_tab());
	menu->set_item_disabled(menu->get_item_index(FILE_RUN), current_is_doc);
}
void ScriptEditor::_tab_changed(int p_which) {
	ensure_select_current();
}
void ScriptEditor::_notification(int p_what) {