Enhancements
- Support fragment sources in join
- Also lookup in the changes map for required fields when casting changesets
- ALlow table and index commands in migration to be pipeable
Bug fixes
- Ensure constraints errors when saving nested association returns the parent changed and not the child one
- Ensure rollback only closes innermost transaction
- Ensure the user changeset containing embeds and assocs is returned when there is a constraint error
- Ensure binary_ids models can specify
unique_constraintfor SQL databases