insertContact() is passed a Contact where notes is empty, however the created contact on the device contains one Note with no text.

Code:

```
final flutterContact(displayName: 'Test');
print('Before add: ${flutterContact.notes}');
final deviceContact = await FlutterContacts.insertContact(flutterContact);
print('After add: ${deviceContact.notes}');
```

Result:
```

Before add: []
After add: [Note(note=)]
```
