rails/rails — pull request #5663 by kennyj (2012-03-30 03:51:42+00:00)
Title: Fix #5563. Should reflect the most recent change to either of association / association_id.

I think that I fixed a problem that the most recent change to *association_id* didn't reflrect *association*.
Please see https://github.com/rails/rails/issues/5563

cc/ @jonleighton @tenderlove

If necessary, I'll send a PR to 3-2-stable.