Feature/pim 1647

```
Bug fix: yes
Feature addition: yes
Backwards compatibility break: no
Unit test passes: yes
Behat scenarios passes: ?
Checkstyle issues: ?
ChangeLog updated: no
Documentation PR:
Fixes the following jira:
 - PIM-1647
 - potentially another one about edit common attributes mass edit action that allows editing all the attributes (even if not in common). This causes a fatal error, because it will try to set the data on a null value (as the product value cannot be retrieved from the product).
```