WIP: Remove default value from AddLockToIssuables
This shouldn't be necessary for optimistic locking, per
https://github.com/rails/rails/issues/18422, and was causing a migration
timeout during deploy, even with our add_column_with_default helper.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This shouldn't be necessary for optimistic locking, per
https://github.com/rails/rails/issues/18422, and was causing a migration
timeout during deploy, even with our add_column_with_default helper.