Ecto virtual fields

[dabaer]

When running insert/1 on a changeset, the shim does not appear to respect the virtual: true setting in the schema, and inserts the virtual fields with their data (eek) into the database.

[Corkle]

I'm having some trouble searching the Ecto docs to find at which point the virtual fields are actually stripped out. By the time Ecto.Changeset.apply_changes(changeset) is applied to return the model for insertion, the virtual fields are still present in changeset.changes.