Rails3: scm: subversion: fix error of test_find_changeset_by_empty_name at unit model test
On Rails 3.1, ActiveRecord::HasManyThroughCantAssociateThroughHasOneOrManyReflection error raises. For more details, see r7062.
Authored by: tmaruyama 2011-09-12
Parent: [r7153]
Child: [r7155]
