Add again setting LabelFQDN in NormalizeAndValidateConfig (#342)

This is to prevent all labels to get erased by the empty LabelFQDN
during calls to `PunyCode`, until a better fix is found.

pkg/normalize/validate.go

@@ -321,7 +321,7 @@ func NormalizeAndValidateConfig(config *models.DNSConfig) (errs []error) {
 			}
 
 			// Populate FQDN:
-			//rec.NameFQDN = dnsutil.AddOrigin(rec.GetLabel(), domain.Name)
+			rec.SetLabel(rec.GetLabel(), domain.Name)
 		}
 	}