to_xml generates invalid xml with namespaced ActiveRecord redux

Interestingly, the problem disappears when serializing just one instance:

>> Wheelie-Cyberman:~/code/accounts $ rails c
Loading development environment (Rails 3.0.0.beta2)
>> print Accounts::User.first.to_xml
<?xml version="1.0" encoding="UTF-8"?>
<accounts-user>
  <display-name nil="true"></display-name>
  <email nil="true"></email>
  <id type="integer">1</id>
  <password nil="true"></password>
</accounts-user>
=> nil
>>

I tested it with rails edge. And this is what I get.

http://gist.github.com/399447

False alarm, then. Sorry, my bad (close this as stale whenever)