Editing country with state-requirement to country without state throws error

[integer-tom]

When changing an adress from countries which also require the user to fill out a state (e.g. India, USA) to a country that doesn't have this requirement (Germany etc.) the error message "The region_id does not match the selected country or region" occures. The checkout can still be finished but the adress won't be saved later on.

[rajeev-k-tomy]

Issue fixed