### 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 (!scr.is_valid()) {
				continue;
			}
			if (!edit(scr, false)) {
				continue;
			}
		} else {
			Error error;
			Ref<TextFile> text_file = _load_text_file(path, &error);
			if (error != OK || !text_file.is_valid()) {
				continue;
			}
			if (!edit(text_file, false)) {
				continue;
			}
		}
		if (!script_info.is_empty()) {
			ScriptEditorBase *se = Object::cast_to<ScriptEditorBase>(tab_container->get_tab_control(tab_container->get_tab_count() - 1));
			if (se) {
				se->set_edit_state(script_info["state"]);
			}
		}
	}
	for (int i = 0; i < helps.size(); i++) {
		String path = helps[i];
		if (path.is_empty()) { 
			continue;
		}
		_help_class_open(path);
	}