Do not use default_scope in ActiveRecord::Persistence#touch.

activerecord/lib/active_record/persistence.rb

@@ -279,7 +279,7 @@ def touch(name = nil)
 
         @changed_attributes.except!(*changes.keys)
         primary_key = self.class.primary_key
-        self.class.update_all(changes, { primary_key => self[primary_key] }) == 1
+        self.class.unscoped.update_all(changes, { primary_key => self[primary_key] }) == 1
       end
     end
 

activerecord/test/cases/timestamp_test.rb

@@ -40,6 +40,15 @@ def test_touching_a_record_updates_its_timestamp
     assert_equal previous_salary, @developer.salary
   end
 
+  def test_touching_a_record_with_default_scope_that_exludes_it_updates_its_timestamp
+    developer = @developer.becomes(DeveloperCalledJamis)
+
+    developer.touch
+    assert_not_equal @previously_updated_at, developer.updated_at
+    developer.reload
+    assert_not_equal @previously_updated_at, developer.updated_at
+  end
+
   def test_saving_when_record_timestamps_is_false_doesnt_update_its_timestamp
     Developer.record_timestamps = false
     @developer.name = "John Smith"