Arcavias/arcavias-core — pull request #597 by xaloga (2014-04-29 16:25:25+00:00)
Title: Add attributes from Subarticles to Selections

corresponding https://forum.arcavias.com/viewtopic.php?f=12&t=314

works in my demo, please give it a try.
I actually think the changes in client/html/src/Client/Html/Catalog/Detail/Basket/Selection/Default.php will make more sense in client/html/src/Client/Html/Catalog/Detail/Additional/Attribute/Default.php.