### 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)

Node *current = tab_container->get_tab_control(tab_container->get_current_tab());
	EditorHelp *se = Object::cast_to<EditorHelp>(current);
	if (!se) {
		return;
	}
	se->scroll_to_section(help_overview->get_item_metadata(p_idx));
}
void ScriptEditor::_script_selected(int p_idx) {
	grab_focus_block = !Input::get_singleton()->is_mouse_button_pressed(MouseButton::LEFT); 
	_go_to_tab(script_list->get_item_metadata(p_idx));
	grab_focus_block = false;
}
void ScriptEditor::ensure_select_current() {
	if (tab_container->get_tab_count() && tab_container->get_current_tab() >= 0) {
		ScriptEditorBase *se = _get_current_editor();
		if (se) {
			se->enable_editor(this);
			if (!grab_focus_block && is_visible_in_tree()) {
				se->ensure_focus();
			}
		}
	}
	_update_find_replace_bar();
	_update_selected_editor_menu();
}
void ScriptEditor::_find_scripts(Node *p_base, Node *p_current, HashSet<Ref<Script>> &used) {