### 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)

for (int i = 0; i < tab_container->get_tab_count(); i++) {
		EditorHelp *eh = Object::cast_to<EditorHelp>(tab_container->get_tab_control(i));
		if (eh && eh->get_class() == p_name) {
			_go_to_tab(i);
			eh->go_to_help(p_desc);
			_update_script_names();
			return true;
		}
	}
	return false;
}
void ScriptEditor::update_doc(const String &p_name) {
	ERR_FAIL_COND(!EditorHelp::get_doc_data()->has_doc(p_name));
	for (int i = 0; i < tab_container->get_tab_count(); i++) {
		EditorHelp *eh = Object::cast_to<EditorHelp>(tab_container->get_tab_control(i));
		if (eh && eh->get_class() == p_name) {
			eh->update_doc();
			return;
		}
	}
}
void ScriptEditor::clear_docs_from_script(const Ref<Script> &p_script) {