fix inverse_of when find_or_initialize_by_*

inverse_of relation was not being set when calling find_or_initialize_by_ and the entry was
found on the db.

1 files changed, 11 insertions, 0 deletions

diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb
index eec78f95c5..53cce33698 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -662,6 +662,17 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
     end
   end
 
+  def test_inverse_after_find_or_initialize
+    firm = companies(:first_firm)
+    client = firm.clients_of_firm.find_or_initialize_by_client_of(firm.id)
+    assert_no_queries do
+      assert_equal firm, client.firm
+    end
+
+    firm.name = "A new firm"
+    assert_equal firm.name, client.firm.name
+  end
+
   def test_new_aliased_to_build
     company = companies(:first_firm)
     new_client = assert_no_queries { company.clients_of_firm.new("name" => "Another Client") }