### 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)

}
				}
				Ref<Script> scr = ResourceLoader::load(path);
				if (!scr.is_valid()) {
					EditorNode::get_singleton()->show_warning(TTR("Could not load file at:") + "\n\n" + path, TTR("Error!"));
					file_dialog_option = -1;
					return;
				}
				edit(scr);
				file_dialog_option = -1;
			} else {
				Error error;
				Ref<TextFile> text_file = _load_text_file(path, &error);
				if (error != OK) {
					EditorNode::get_singleton()->show_warning(TTR("Could not load file at:") + "\n\n" + path, TTR("Error!"));
				}
				if (text_file.is_valid()) {
					edit(text_file);
					file_dialog_option = -1;
				}
			}
		} break;
		case FILE_SAVE_ALL: {
			if (_test_script_times_on_disk()) {
				return;
			}
			save_all_scripts();
		} break;
		case SEARCH_IN_FILES: {
			_on_find_in_files_requested("");