public CharacteristicViewModel(Characteristic characteristic, CharacteristicsService characteristicsService)
{
DeferValidationUntilFirstSaveCall = false;
_modelBackup = characteristic.CreateBackup();
_characteristicsService = characteristicsService;
Characteristic = characteristic;
RedirectTargets = characteristicsService.GetRedirectTargets(characteristic);
CharacteristicsRedirectingToThis = characteristicsService.GetRedirectSources(characteristic);
AllowRedirect = CharacteristicsRedirectingToThis.Count == 0;
}