Feature request from mage2pro, posted on GitHub Sep 30, 2015
The issue is similar to (but not the same as) https://github.com/magento/magento2/issues/1909 and https://github.com/magento/magento2/issues/1980
My fix with plugins: https://mage2.pro/t/96
Surely the possibility to translate product attributes should be in the core.
Comment from voleye, posted on GitHub Oct 01, 2015
Thank you for helping us make Magento better! We will discuss it and get back to you once we agreed on it.