Autotest, cucumber, spork and the wrong file

Running:

Rails 3.0.5
ZenTest 4.5.0
autotest (4.4.6, 4.3.2)
autotest-fsevent (0.2.5, 0.2.2)
autotest-growl (0.2.9, 0.2.4)
autotest-rails (4.1.0)
autotest-rails-pure (4.1.2, 4.1.0)
cucumber (0.10.2)
cucumber-rails (0.4.0)
spork (0.9.0.rc4)

Gives me a truly bizarre situation. When I touch my features file,
autotest runs a single, unrelated rspec test.

Cucumber alone or with spork gives me the correct output, but the
autotest event fires on the wrong file.

Any thoughts?