Rails3: scm: git: fix error of test_db_consistent_ordering_before_1_2 at unit model test
On Rails 3.1, ActiveRecord::HasManyThroughCantAssociateThroughHasOneOrManyReflection error raises. For more details, see r7062.
Authored by: tmaruyama 2011-09-07
Parent: [r7071]
Child: [r7073]
