Attributes sort order for invoice/packing slip

[aeolidia]

The option names have sort orders and the option values are text fields.

Right now they are set like this in the Option Name Manager:

- Main Tag Child Name: 1
- Main Tag Birthdate: 2
- Second Child Name: 3
- Second Child Birthdate: 4

They display in the correct order on the item pages, just not on the invoice through the admin.

Thanks!