buildbot/buildbot — pull request #577 by tomprince (2012-11-20 23:39:41+00:00)
Title: Fix Triggerable to behave as it did pre-codebase.

- ``alwaysUseLatest`` doesn't pass repository or branch information on.
- ``sourceStamps`` overrides, not augments build source stamps
- changes are properly propagated

(Note: github will improperly merge release notes)