fixed erase page problem

src/domain/UBGraphicsItemDelegate.cpp

@@ -489,7 +489,6 @@ void UBGraphicsItemDelegate::remove(bool canUndo)
         if (mFrame && !mFrame->scene() && mDelegated->scene())
         {
             mDelegated->scene()->addItem(mFrame);
-        }
             mFrame->setAntiScale(mAntiScaleRatio);
             mFrame->positionHandles();
             updateButtons(true);
@@ -498,6 +497,7 @@ void UBGraphicsItemDelegate::remove(bool canUndo)
                 scene->removeItem(button);
             }
             scene->removeItem(mFrame);
+        }
 
         /* this is performed because when removing delegated from scene while it contains flash content, segfault happens because of QGraphicsScene::removeItem() */
         UBGraphicsWidgetItem *mDelegated_casted = dynamic_cast<UBGraphicsWidgetItem*>(mDelegated);