Fix the AWS-Batch describe_jobs problem with not-yet-started jobs.
Fix the AWS-Batch describe_jobs problem with not-yet-started jobs.

spulec/moto,william-richard/moto,spulec/moto,spulec/moto,spulec/moto,william-richard/moto,william-richard/moto,spulec/moto,william-richard/moto,william-richard/moto,william-richard/moto,spulec/moto