When looking at environments in foreman via "Settings" > "Environments" and clicking the "classes" link for a specific environment I get an error:

Unsupported query object: {"environments_id_equals"=>"3"}!

Also, the search box has a query of:

environments_id_equals3

From my production.log:

Processing PuppetclassesController#index (for 56.192.77.203 at 2011-06-09 14:21:39) [GET]
Parameters: {"search"=>{"environments_id_equals"=>"3"}}
Rendering template within layouts/application
Rendering puppetclasses/index
Completed in 392ms (View: 371, DB: 7) | 200 OK [https://eagnmnmepf48.usps.gov/puppetclasses?search[environments_id_equals]=3]