Revert "Merge pull request #12413 from arthurnn/inverse_of_on_build"

This reverts commit ccd11d5891, reversing
changes made to 54c05acdba.

Reason: This caused a regression when the associated record is created
in a before_create callback. See
https://github.com/rails/rails/pull/12413#issuecomment-25848163

activerecord/CHANGELOG.md

@@ -1,10 +1,4 @@
 ## unreleased ##
-*   Move .set_inverse_instance call to association.build_record method. Everytime a new record is build
-    using the association, we need to try to set the inverse_of relation.
-
-    Fixes #10371.
-
-    *arthurnn*
 
 *   When calling the method .find_or_initialize_by_* from a collection_proxy
     it should set the inverse_of relation even when the entry was found on the db.

activerecord/lib/active_record/associations/association.rb

@@ -240,7 +240,6 @@ module ActiveRecord
             skip_assign = [reflection.foreign_key, reflection.type].compact
             attributes = create_scope.except(*(record.changed - skip_assign))
             record.assign_attributes(attributes, :without_protection => true)
-            set_inverse_instance(record)
           end
         end
     end

activerecord/lib/active_record/associations/collection_association.rb

@@ -350,6 +350,7 @@ module ActiveRecord
         end
 
         callback(:after_add, record)
+        set_inverse_instance(record)
 
         record
       end

activerecord/test/cases/associations/inverse_associations_test.rb

@@ -125,10 +125,8 @@ class InverseHasOneTests < ActiveRecord::TestCase
   end
 
   def test_parent_instance_should_be_shared_with_newly_created_child
-    m = Man.create
+    m = Man.find(:first)
     f = m.create_face(:description => 'haunted')
-
-    assert_equal m.object_id, f.man.object_id
     assert_not_nil f.man
     assert_equal m.name, f.man.name, "Name of man should be the same before changes to parent instance"
     m.name = 'Bongo'