Keep nested help commands with application handlers

execute.go

@@ -42,7 +42,7 @@ func (a *App) Execute(ctx context.Context, args []string, streams Streams) Outco
 	if err := command.payload.checkInput(input); err != nil {
 		return current.present(Usage(err), parsed.Path)
 	}
-	if command.name == "help" {
+	if len(parsed.Path) == 1 && parsed.Path[0] == "help" {
 		help, ok := input.(*helpInput)
 		if !ok {
 			return current.present(Failure(errors.New("built-in help input has an unexpected type")), parsed.Path)