function getTransitionInProgressObjectMD() {
    return new ObjectMD(baseMd)
        .setTransitionInProgress(true, new Date(Date.now() - 60))
        .setOriginOp('s3:LifecycleTransition:Start');
}
Computes the 'archive' field of the object MD as an object being restored
@returns {ObjectMD} the MD object