emberjs/data — pull request #909 by bobbus (2013-04-23 11:05:54+00:00)
Title: Keep errors after 422 response event if they do not match an attribute name

Since PR #831 was merged, all properties receive as error with a 422 response are lost if they do not match an attribute name.

I would think we prefer to keep them in the `errors` property of the record then everyone would be able to deal with errors the way they wants.