When eager loading a HABTM and also including anything beyond it, everything in that result should have been queried for. Add passing tests that previously failed on Rails 2.3.8

eager_test_patch_for_habtm.patch

From 03c1caefa04d9d22da31c02b6a137e76d43caf76 Mon Sep 17 00:00:00 2001
From: Joe Rafaniello <jrafanie@gmail.com>
Date: Fri, 30 Sep 2011 18:27:25 -0400
Subject: [PATCH] When eager loading a HABTM and also including anything
 beyond it, everything in that result should have been
 queried for. Add passing tests that previously failed on
 Rails 2.3.8.

See https://rails.lighthouseapp.com/projects/8994/tickets/4831
---
 activerecord/test/cases/associations/eager_test.rb |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/activerecord/test/cases/associations/eager_test.rb b/activerecord/test/cases/associations/eager_test.rb
index c6e451f..d8949aa 100644
--- a/activerecord/test/cases/associations/eager_test.rb
+++ b/activerecord/test/cases/associations/eager_test.rb
@@ -181,6 +181,13 @@ class EagerAssociationTest < ActiveRecord::TestCase
     assert_equal categories.map { |category| category.posts.first.special_comments.loaded? }, [true, true]
   end
 
+  def test_deep_including_through_habtm
+    posts = Post.find(:all, :include => {:categories => :categorizations}, :order => "posts.id")
+    assert_no_queries { assert_equal 2, posts[0].categories[0].categorizations.length }
+    assert_no_queries { assert_equal 1, posts[0].categories[1].categorizations.length }
+    assert_no_queries { assert_equal 2, posts[1].categories[0].categorizations.length }
+  end
+
   def test_finding_with_includes_on_has_many_association_with_same_include_includes_only_once
     author_id = authors(:david).id
     author = assert_queries(3) { Author.find(author_id, :include => {:posts_with_comments => :comments}) } # find the author, then find the posts, then find the comments
-- 
1.7.6.1