/**
  * @param \Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend $subject
  * @param \Closure $proceed
  * @param \Magento\Framework\DataObject $attribute
  * @return bool
  */
 public function aroundValidate(\Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend $subject, \Closure $proceed, \Magento\Framework\DataObject $attribute)
 {
     $useDefault = $attribute->getUseDefault();
     $attrCode = $subject->getAttribute()->getAttributeCode();
     if ($useDefault && isset($useDefault[$attrCode])) {
         return true;
     }
     return $proceed($attribute);
 }