fixed group persistance issue

src/adaptors/UBSvgSubsetAdaptor.cpp

@@ -1336,20 +1336,21 @@ void UBSvgSubsetAdaptor::UBSvgSubsetWriter::persistGroupToDom(QGraphicsItem *gro
         curGroupElement.setAttribute(aId, uuid);
         curParent->appendChild(curGroupElement);
 
+        qDebug() << groupItem->children().count();
+
         foreach (QGraphicsItem *item, groupItem->childItems()) {
             QUuid tmpUuid = UBGraphicsScene::getPersonalUuid(item);
             if (!tmpUuid.isNull()) {
                 if (item->type() == UBGraphicsGroupContainerItem::Type && item->childItems().count())
                     persistGroupToDom(item, curParent, groupDomDocument);
-            }
                 else {
                     QDomElement curSubElement = groupDomDocument->createElement(tElement);
-
                     curSubElement.setAttribute(aId, tmpUuid);
                     curGroupElement.appendChild(curSubElement);
                 }
             }
         }
+    }
 }
 
 void UBSvgSubsetAdaptor::UBSvgSubsetWriter::polygonItemToSvgLine(UBGraphicsPolygonItem* polygonItem, bool groupHoldsInfo)