### 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)

int selected = tab_container->get_current_tab();
	if (selected < 0 || selected >= tab_container->get_tab_count()) {
		help_overview->set_visible(false);
		return;
	}
	Node *current = tab_container->get_tab_control(tab_container->get_current_tab());
	EditorHelp *se = Object::cast_to<EditorHelp>(current);
	if (!se) {
		help_overview->set_visible(false);
		return;
	}
	if (help_overview_enabled) {
		members_overview_alphabeta_sort_button->set_visible(false);
		filter_methods->set_visible(false);
		help_overview->set_visible(true);
		overview_vbox->set_visible(true);
		filename->set_text(se->get_name());
	} else {
		help_overview->set_visible(false);
		overview_vbox->set_visible(false);
	}
}
void ScriptEditor::_update_help_overview() {