Arvados

Following #3036 and #4269, collection uuids are forbidden from job script parameters. We have some unknown number of jobs in the database which reference input collections by uuid, and should add a migration to keep them consistent with new jobs.

The migration for this change will need to be careful to use the correct portable_data_hash for a collection as it existed at the time the job was created.

• If the collection has not been modified since the job was recorded, then it should be safe to use the current portable_data_hash (this should cover most cases).
• If, however, the collection has been modified more recently than the job, it will be necessary to process the logs for that collection to ensure that we use the portable_data_hash that was in effect at the time the job was processed.