I've written a rake task to get the un-fingerprinted files à la Rails 3.2 back:
namespace :assets do
desc "Create symlinks without cache busting digest"
task :create_symlinks_without_digest => :environment do
Dir.glob(Rails.root.join('public', 'assets', '**', '*')).each do |item|
if File.file?(item) && item.match(/-[a-f0-9]{32}/)
FileUtils.ln_s Pathname(item).basename, item.sub(/-[a-f0-9]{32}/, '')
end
end
end
end