1 files changed, 22 insertions, 2 deletions
diff --git a/activerecord/test/cases/associations/nested_through_associations_test.rb b/activerecord/test/cases/associations/nested_through_associations_test.rb
index 80c6e41169..03d99d19f6 100644
--- a/activerecord/test/cases/associations/nested_through_associations_test.rb
+++ b/activerecord/test/cases/associations/nested_through_associations_test.rb
@@ -356,6 +356,17 @@ class NestedThroughAssociationsTest < ActiveRecord::TestCase
     assert_equal categories(:general), members(:groucho).club_category
   end
 
+  def test_joins_and_includes_from_through_models_not_included_in_association
+    prev_default_scope = Club.default_scopes
+
+    [:includes, :preload, :joins, :eager_load].each do |q|
+      Club.default_scopes = [Club.send(q, :category)]
+      assert_equal categories(:general), members(:groucho).reload.club_category
+    end
+  ensure
+    Club.default_scopes = prev_default_scope
+  end
+
   def test_has_one_through_has_one_through_with_belongs_to_source_reflection_preload
     members = assert_queries(4) { Member.includes(:club_category).to_a.sort_by(&:id) }
     general = categories(:general)
@@ -494,7 +505,7 @@ class NestedThroughAssociationsTest < ActiveRecord::TestCase
   def test_nested_has_many_through_with_conditions_on_through_associations_preload_via_joins
     # Pointless condition to force single-query loading
     assert_includes_and_joins_equal(
-      Author.where('tags.id = tags.id'),
+      Author.where('tags.id = tags.id').references(:tags),
       [authors(:bob)], :misc_post_first_blue_tags
     )
   end
@@ -515,7 +526,7 @@ class NestedThroughAssociationsTest < ActiveRecord::TestCase
   def test_nested_has_many_through_with_conditions_on_source_associations_preload_via_joins
     # Pointless condition to force single-query loading
     assert_includes_and_joins_equal(
-      Author.where('tags.id = tags.id'),
+      Author.where('tags.id = tags.id').references(:tags),
       [authors(:bob)], :misc_post_first_blue_tags_2
     )
   end
@@ -534,6 +545,15 @@ class NestedThroughAssociationsTest < ActiveRecord::TestCase
     assert_equal [organizations(:nsa)], organizations
   end
 
+  def test_nested_has_many_through_should_not_be_autosaved
+    c = Categorization.new
+    c.author = authors(:david)
+    c.post_taggings.to_a
+    assert !c.post_taggings.empty?
+    c.save
+    assert !c.post_taggings.empty?
+  end
+
   private
 
     def assert_includes_and_joins_equal(query, expected, association)