Sylius/Sylius — pull request #1751 by robholmes (2014-07-30 19:06:53+00:00)
Title: [Shipping] Removing tracking code requirement

| Q | A
| ------------- | ---
| Bug fix? | no
| New feature? | yes
| BC breaks? | no
| Deprecations? | no
| Tests pass? | no
| Fixed tickets | #1015
| License | MIT
| Doc PR |

Removing NotBlank constraint on shipment tracking code form. This allows shipments to be shipped without giving a tracking code, as some couriers/postal services don't have tracking codes.

As previously mentioned in issue #1015