Prevent crash

app/src/main/java/eu/faircode/email/FragmentIdentity.java

@@ -998,6 +998,7 @@ public class FragmentIdentity extends FragmentBase {
 
                         EntityAccount unselected = new EntityAccount();
                         unselected.id = -1L;
+                        unselected.auth_type = MailService.AUTH_TYPE_PASSWORD;
                         unselected.name = getString(R.string.title_select);
                         unselected.primary = false;
                         accounts.add(0, unselected);