### 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)

_update_search();
}
void ScriptEditorQuickOpen::_sbox_input(const Ref<InputEvent> &p_ie) {
	Ref<InputEventKey> k = p_ie;
	if (k.is_valid() && (k->get_keycode() == Key::UP || k->get_keycode() == Key::DOWN || k->get_keycode() == Key::PAGEUP || k->get_keycode() == Key::PAGEDOWN)) {
		search_options->gui_input(k);
		search_box->accept_event();
	}
}
void ScriptEditorQuickOpen::_update_search() {
	search_options->clear();
	TreeItem *root = search_options->create_item();
	for (int i = 0; i < functions.size(); i++) {
		String file = functions[i];
		if ((search_box->get_text().is_empty() || file.findn(search_box->get_text()) != -1)) {
			TreeItem *ti = search_options->create_item(root);
			ti->set_text(0, file);
			if (root->get_first_child() == ti) {
				ti->select(0);
			}
		}
	}
	get_ok_button()->set_disabled(root->get_first_child() == nullptr);
}
void ScriptEditorQuickOpen::_confirmed() {