0
@@ -187,7 +187,7 @@ module ActiveRecord
0
         if @owner.new_record? || (loaded? && !@reflection.options[:uniq])
0
           @target.size
0
         elsif !loaded? && !@reflection.options[:uniq] && @target.is_a?(Array)
0
-          unsaved_records = Array(@target.detect { |r| r.new_record? })
0
+          unsaved_records = @target.select { |r| r.new_record? }
0
           unsaved_records.size + count_records
0
         else
0
           count_records

0
@@ -384,6 +384,13 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
0
     assert_equal 2, company.clients_of_firm(true).size
0
   end
0
 
0
+  def test_collection_size_after_building
0
+    company = companies(:first_firm)  # company already has one client
0
+    company.clients_of_firm.build("name" => "Another Client")
0
+    company.clients_of_firm.build("name" => "Yet Another Client")
0
+    assert_equal 3, company.clients_of_firm.size
0
+  end
0
+
0
   def test_build_many
0
     company = companies(:first_firm)
0
     new_clients = assert_no_queries { company.clients_of_firm.build([{"name" => "Another Client"}, {"name" => "Another Client II"}]) }