修复子命令撤销重做的回归BUG

src/DatabaseServices/CreateObjectData.ts

@@ -20,9 +20,11 @@ export class CreateObjectData extends CADObject
     //记录数据,在命令结束的时候记录
     Save()
     {
-        if (this.Object)
+        if (this.Object && this.CADFiler.Data.length === 0)
+        {
+            this.CADFiler.Data.length = 0;
             this.CADFiler.WriteObject(this.Object);
-
+        }
         return this;
     }
 

src/DatabaseServices/HistoricManage.ts

@@ -77,10 +77,14 @@ export class HistoricManage extends CADObject
             return this.historyRecord[this.historyRecord.length - 1];
     }
 
+    //开始子命令标记
     StartMark()
     {
         if (this._SignalCommandHistory)
+        {
+            this._SignalCommandHistory.EndCmd();
             this._SignalCommandHistory.StartCmd("");
+        }
     }
 
     /**