🩹 [#266] fix AddressNL crash inside of EditGrid component

When the user click on the "Add another" or "Edit item" button then it triggers
'onClick' event for the EditGrid item button, which uses onChange and flushSync
under the hood. Durin flushSync the AddressNl component is being updated and loaded,
but when it happens the 'values' in the FormikContext are not updated, so
the 'addressData' is undefined.

Author: annashamray

src/registry/addressNL/deriveAddress.ts

@@ -34,7 +34,7 @@ export const useDeriveAddress = (key: string, enabled: boolean): UseDeriveAddres
 
   // debounce to avoid rapidly firing updates when the user is typing
   const addressData = useDebounce(value, 300);
-  const {postcode, houseNumber} = addressData;
+  const {postcode, houseNumber} = addressData ?? {};
 
   // if postcode/house number change, check if we need to clear the derived inputs
   useEffect(() => {