pantsbuild/pants — pull request #324 by jsirois (2014-07-08 16:13:31+00:00)
Title: Fixup RoundManager scheduling for phases that depend on themselves.

Handle this case explicitly and add test coverage for the
RoundEngine.

This also adds proper cli phase de-duping and validation
that requested data products actually have a producer.

https://rbcommons.com/s/twitter/r/644/