2 files changed, 31 insertions, 9 deletions
diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb
index fed59c2ab3..0ce67f971b 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -2461,9 +2461,12 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
   end
 
   test "double insertion of new object to association when same association used in the after create callback of a new object" do
-    car = Car.create!
-    car.bulbs << TrickyBulb.new
-    assert_equal 1, car.bulbs.size
+    reset_callbacks(:save, Bulb) do
+      Bulb.after_save { |record| record.car.bulbs.to_a }
+      car = Car.create!
+      car.bulbs << Bulb.new
+      assert_equal 1, car.bulbs.size
+    end
   end
 
   def test_association_force_reload_with_only_true_is_deprecated
@@ -2510,9 +2513,34 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
     assert_no_queries { car.bulb_ids }
   end
 
+  def test_loading_association_in_validate_callback_doesnt_affect_persistence
+    reset_callbacks(:validation, Bulb) do
+      Bulb.after_validation { |m| m.car.bulbs.load }
+
+      car = Car.create!(name: "Car")
+      bulb = car.bulbs.create!
+
+      assert_equal [bulb], car.bulbs
+    end
+  end
+
   private
 
     def force_signal37_to_load_all_clients_of_firm
       companies(:first_firm).clients_of_firm.load_target
     end
+
+    def reset_callbacks(kind, klass)
+      old_callbacks = {}
+      old_callbacks[klass] = klass.send("_#{kind}_callbacks").dup
+      klass.subclasses.each do |subclass|
+        old_callbacks[subclass] = subclass.send("_#{kind}_callbacks").dup
+      end
+      yield
+    ensure
+      klass.send("_#{kind}_callbacks=", old_callbacks[klass])
+      klass.subclasses.each do |subclass|
+        subclass.send("_#{kind}_callbacks=", old_callbacks[subclass])
+      end
+    end
 end
diff --git a/activerecord/test/models/bulb.rb b/activerecord/test/models/bulb.rb
index 3196207ac9..113d21cb84 100644
--- a/activerecord/test/models/bulb.rb
+++ b/activerecord/test/models/bulb.rb
@@ -50,9 +50,3 @@ class FailedBulb < Bulb
     throw(:abort)
   end
 end
-
-class TrickyBulb < Bulb
-  after_create do |record|
-    record.car.bulbs.to_a
-  end
-end