Duplicate products and customers

[krzykamil]

Steps to reproduce: Setup database and then for example run rake db: seed a couple of times (seeds are using commands) There is some code that is supposed to raise an error, and it even has a test, but it seems the test are false positives Both the products and customers have multiple duplicates (same attributes, different ids). Seems resonable that this state should not be allowed

[krzykamil]

Same issue with coupons I recently added, would like to resolve them all at once

[andrzejkrzywda]

Let's make those separate tickets.

The technical solution is probably the same but business impact should be looked at differently.