[v0.40.1](https://github.com/ash-project/ash_postgres/compare/v0.40.0-rc5...v0.40.1) (2021-07-02)
Bug Fixes:
* properly coalesce aggregate values
* always add nullability flag
* sort references only after other same-table ops
* generate multitenant foreign keys properly
Improvements:
* update to latest ash
* leverage new `private_vars` for errs