emberjs/data — pull request #2080 by alexBaizeau (2014-07-10 20:33:42+00:00)
Title: [BUGFIX] Fixes embedded hasMany primary key lookup.

When an embedded hasMany relationships defines it's own primary key `updatePayloadWithEmbeddedHasMany` should query the embeddedSerializer for it.

The expected behaviour is described in the associated test.