修复一个sfc的bug

AIStudio.Wpf.DiagramDesigner/Models/Serializables/SelectableItemBase.cs

@@ -34,6 +34,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             this.IsGroup = viewmodel.IsGroup;
             this.ParentId = viewmodel.ParentId;
             this.Text = viewmodel.Text;
+            this.Name = viewmodel.Name;
 
             ColorItem = CopyHelper.Mapper<ColorItem>(viewmodel.ColorViewModel);
             FontItem = CopyHelper.Mapper<FontItem, IFontViewModel>(viewmodel.FontViewModel);
@@ -64,6 +65,12 @@ namespace AIStudio.Wpf.DiagramDesigner
             get; set;
         }
 
+        [XmlAttribute]
+        public string Name
+        {
+            get; set;
+        }
+
         [XmlAttribute]
         public string Text
         {