fix #877

resources/views/form/container.blade.php

@@ -16,5 +16,7 @@
 {!! $form->renderFooter() !!}
 
 @foreach($form->hiddenFields() as $field)
-    {!! $field->render() !!}
+    @if(! $field->hasAttribute(Dcat\Admin\Form\Field::BUILD_IGNORE))
+        {!! $field->render() !!}
+    @endif
 @endforeach

src/Form/BlockForm.php

@@ -98,7 +98,7 @@ class BlockForm extends WidgetForm
     {
         $field->attribute(Field::BUILD_IGNORE, true);
 
-        $this->form->builder()->pushField((clone $field)->display(false));
+        $this->form->builder()->pushField($field);
         $this->fields->push($field);
 
         if ($this->layout()->hasColumns()) {