Error when running tests on wagn master+issues

I set up a wagn postgresql development environment with:

git clone ...

bundle install --without mysql

ENGINE=postgres MODE=dev rake wagn:install

vi config/database.yml

rake wagn:create

RELOAD_TEST_DATA=true rake db:test:prepare

Now I find that I cannot run any tests. With "rake cucumber" I get:

Missing codename set (SetID) /full/path/to/lib/cardlib/rules.rb:6 in '<module:Rules>'

With "rake" or "rake test" I get:

With plain "rake" or "rake test" I get:

/full/path/to/card.rb:56:in `const_missing': Missing codename set (SetID)...

(but the rest of the error message is identical).

Am I missing a step? A quick glance at const_missing appears to be defining the const dynamically by finding a card called "set", and if that doesn't exist perhaps there is some database seeding that I need to do?