Job Type - Default Services should save in order added

Tenant thompsonfamilyplumbing noted that when they add Default Services for a job type and save, the services do not retain the order in which they were added. The order in which the services do save does not appear to have any discernible logic, it's not alpha-numeric, by Quantity, Price, nor the item IDs. It would be sensible that Default Services save in the order they are added in the Job Type settings, and appear on an invoice in that same order when the job type is booked.