Steps to reproduce the routing problem:

• Create an empty rails app
• script/generate controller thingy
• script/generate cotnroller thing/subthingy
• script/console
  > ActionController::Routing::Routes.recognize_path('/thingy/subthingy', { :method => :get })

=> This recognizes controller => 'thingy', action => 'subthingy'
=> It should recognize controller => 'thingy/subthingy'

See the debug results on the mailing list page.

At the very least Rails should not depend on the order in which files are returned from Dir globbing, so I almost want to mark this as "won't fix".

Fixed as part of my 1.8.7 work.