emberjs/data — pull request #189 by hjdivad (2012-04-05 18:39:07+00:00)
Title: Dirtying embedded belongsTo dirties parent.

Fixes #187.

Note: This commit handles the simple case of one record belongsTo one other
record. There are two cases not handled:

1. Two parents each embed the same associated record.
2. The parent of an embedded record changes.