Rafael dos Santos Silva 226d81fcc5 FIX: Fix a PostgreSQL error when a draft was concurrently created
Moves the new draft creation concurrency handling to PostgreSQL
so the database doesn't error out when the draft is being created
by multiple backends.

Also removes `retry_not_unique` parameter from Draft#set` which is
not called anywhere.

Also fixes a draft update not bumping the `updated_at` column.
2020-03-19 13:31:11 -03:00
..