Added failing spec to show problem
Added failing spec to show problem

See this thread for discussion:
* http://groups.google.com/group/datamapper/browse_thread/thread/fbe662949ca5bb11

engineyard/dm-core,ar-dm/ardm-core,tpitale/dm-core,tillsc/dm-core,alloy/dm-core,joevandyk/dm-core,datamapper/dm-core