Fixed some tests that were failing because the exclusive lists column was configured at the same time it was added, which was apparently bad for the strong_migrations rule. Now split up into creating, backfilling, adding a non-null constraint, and validating it, which seems like overkill but whatevs i just follow what the error message sez
strong_migrations
rule. Now split up into creating, backfilling, adding a non-null constraint, and validating it, which seems like overkill but whatevs i just follow what the error message sez