WooCommerce 3.x product attributes not shown

Hello,

We are struggling few days, and still can’t find the reason of the issue.

After update to WooCommerce 3.0.3 product attributes are not shown in checkout, cart, mini-cart pages. When we comment this code https://screencast.com/t/pGbKwr5ll everything is shown, but when comment out, then not.

In fact attributes exist in database, and this code only influence on their appearance.

Kindly advice what could be a reason.