/**
  * Handle the command.
  */
 public function handle()
 {
     /* @var FormBuilder $builder */
     foreach ($this->builder->getForms() as $builder) {
         if ($builder->hasFormErrors()) {
             // We can't save now!
             $this->builder->setSave(false);
             /*
              * Merge errors from child forms into the
              * multiple form builder's form instance.
              */
             $this->mergeErrors($builder->getFormErrors());
         }
     }
 }