GX-Entwicklung

Steps to reproduce:

1. Gambio Admin > Customers > Customer detail page
2. Edit configurations
3. Try to save ,flat, table , ,, flat,for disallowed shipping methods and for disallowed payment methods

Expected result:
Disallowed shipping methods: flat,table
Disallowed payment methods: --none--

Actual result:
Saving is not possible.

Second problem
The customer detail page shows no customer data, if the value for payment_unallowed or shipping_unallowed is only a space character .

Expected result
The customer detail page works even if the payment_unallowed or shipping_unallowed value is a space character.