When a the callsign of a previously saved QSO is changed, the country is not updated when saving it with a new callsign which belongs to another country.

Example: Entering QSO as YJ1YJK (DXCC Vanuatu), saving QSO and then changing it to YI1YJK (Iraq) the country remains as Vanuatu in the log.

Thus errors are thrown when QSO is uploaded to Clublog later.

Expected result: Run through validity checks when changing callsign and saving correct country.