Discuss the project <-> origin mapping

The current db schema maps each "project" to a single "origin" (while keeping the history of this mapping).

This prevents us from having a single project point to, e.g., a tarball directory and a git/hg repository at the same time.

Do we want to register that Python-3.5.0.tar.xz is different to the 3.5.0 tag on hg.python.org?

---

Migrated from T3 (view on Phabricator)