rails/rails — pull request #8457 by caike (2012-12-07 22:16:45+00:00)
Title: Remove invalid query example from ActiveRecord changelog.

These queries don't seem to work without explicitly informing
the join table, like:

Post.where(comments: { name: 'foo' }).joins(:comments)

Which also reflects what tests in test/cases/relation/where_test.rb
currently look like.