Fix Original/Default input detection in DeliveryAdminWindow

Elwig/Windows/AreaComAdminWindow.xaml.cs

@@ -80,14 +80,13 @@ namespace Elwig.Windows {
             AreaComTypeInput.SelectedItem = a.AreaComType;
             WineCultivationInput.SelectedItem = a.WineCult;
 
-            FillOriginalValues();
+            FinishInputFilling();
         }
 
         private async void InitInputs() {
             FbNrInput.Text = (await Context.NextFbNr()).ToString();
             MgNrInput.Text = Member.MgNr.ToString();
-            FillOriginalValues();
-            ValidateRequiredInputs();
+            FinishInputFilling();
         }
 
         protected override async Task RenewContext() {