French postal codes : All with CEDEX. Not realistic

First of all, Mockaroo is a fantastic tool. Thank you to Mockaroo team.

I have a problem to generate french postal codes.
I’ve created a schema with:

  • Postal Code
  • City
  • Country with restrict countries ‘France’

Postal codes are french but all with CEDEX. Which is not realistic.
Is it a bug ? Or I did something wrong ?

|11020 CEDEX|Carcassonne|France|
|74304 CEDEX|Cluses|France|
|28205 CEDEX|Châteaudun|France|