If submission fails on server, each for nil

[jamo]

Error like this: http://tmc.mooc.fi/mooc/submissions/186134

assy-mooc-2013 $ tmc-client submit tehtavat-06.TulosteluaLikeABoss
Submission url: http://tmc.mooc.fi/mooc/submissions/186134.json?api_version=5
Status: error
Points: []
Tests:
/Users/jamo/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/tmc-client-0.0.3/lib/tmc-client/client.rb:363:in status': undefined methodeach' for nil:NilClass (NoMethodError)
from /Users/jamo/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/tmc-client-0.0.3/lib/tmc-client/client.rb:347:in submit_exercise' from /Users/jamo/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/tmc-client-0.0.3/bin/tmc-client:26:in<top (required)>'
from /Users/jamo/.rbenv/versions/1.9.3-p327/bin/tmc-client:23:in load' from /Users/jamo/.rbenv/versions/1.9.3-p327/bin/tmc-client:23:in

'