Model hasDataChanges always true

[Detzler]

Preconditions

1. PHP7.1
2. Magento2.2

Steps to reproduce

1. Execute:

...
$collection = $collectionFactory->create();                              
$collection->addAttributeToSelect('*');
$category = $collection->getFirstItem();
var_dump($category->hasDataChanges());
$category->save();

Expected result

1. hasDataChanges returns false because no data has been changed

Actual result

1. hasDataChanges returns true
2. Performance impact on $category->save()

[magento-engcom-team]

@Detzler, thank you for your report.
We've created internal ticket(s) MAGETWO-84213 to track progress on the issue.

[virtual97]

#mageconf

[magento-engcom-team]

@virtual97 thank you for joining. Please accept team invitation here and self-assign the issue.