rack.session.record too lazy

I'm porting a Rails 1.1.6 :-) app to Rails3 that stores sessions in db.

In the old days, I used session.model to put some data in the sessions table.

Now I saw that session.model is deprecated in favour of request.env['rack.session.record']

But, it seems like http://github.com/rails/rails/commit/e210895ba95e498b9debbf43a3e5ae... broke my attached test.

Reverting the changes should solve the case, but, is this the right way?

Some information:

andre@amazonpc:~/rails/edge/actionpack$ rails -v
Rails 3.0.0.rc
andre@amazonpc:~/rails/edge/actionpack$ ruby -v
ruby 1.8.7 (2010-04-19 patchlevel 253) [i686-linux], MBARI 0x8770, Ruby Enterprise Edition 2010.02  
andre@amazonpc:~/rails/edge/actionpack$ rake test_active_record_integration
(in /home/andre/rails/edge/actionpack)
Loaded suite /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader
Started
.......F................................................................
Finished in 9.356048 seconds.

  1) Failure:
test_rack_session_record_presence(ActiveRecordStoreTest)
    [./test/activerecord/active_record_store_test.rb:78:in `test_rack_session_record_presence'
     ./test/activerecord/active_record_store_test.rb:223:in `with_test_route_set'
     ./test/abstract_unit.rb:214:in `with_routing'
     ./test/activerecord/active_record_store_test.rb:213:in `with_test_route_set'
     ./test/activerecord/active_record_store_test.rb:75:in `test_rack_session_record_presence'
     /home/andre/rails/edge/activesupport/lib/active_support/testing/setup_and_teardown.rb:67:in `__send__'
     /home/andre/rails/edge/activesupport/lib/active_support/testing/setup_and_teardown.rb:67:in `run'
     /home/andre/rails/edge/activesupport/lib/active_support/callbacks.rb:423:in `_run_setup_callbacks'
     /home/andre/rails/edge/activesupport/lib/active_support/testing/setup_and_teardown.rb:65:in `run']:
<"ActiveRecord::SessionStore::Session"> expected but was
<"NilClass">.

72 tests, 141 assertions, 1 failures, 0 errors
rake aborted!
Command failed with status (1): [/usr/local/bin/ruby -I"lib:test" "/usr/loc...]

(See full trace by running task with --trace)