diff --git a/mindplot/src/main/javascript/commands/DeleteCommand.js b/mindplot/src/main/javascript/commands/DeleteCommand.js
index 99bb63ef..4720f883 100644
--- a/mindplot/src/main/javascript/commands/DeleteCommand.js
+++ b/mindplot/src/main/javascript/commands/DeleteCommand.js
@@ -41,7 +41,7 @@ mindplot.commands.DeleteCommand = new Class({
                     while (relationships.length > 0) {
                         var relationship = relationships[0];
 
-                        this._deletedRelModel.push(relationship);
+                        this._deletedRelModel.push(relationship.getModel().clone());
                         commandContext.deleteRelationship(relationship);
                     }
 
@@ -87,6 +87,7 @@ mindplot.commands.DeleteCommand = new Class({
 
             }.bind(this)
         );
+
         this._deletedRelModel.forEach(function (model) {
             commandContext.addRelationship(model);
         }.bind(this));
diff --git a/mindplot/src/main/javascript/commands/MoveControlPointCommand.js b/mindplot/src/main/javascript/commands/MoveControlPointCommand.js
index c8e799c8..3419fe2b 100644
--- a/mindplot/src/main/javascript/commands/MoveControlPointCommand.js
+++ b/mindplot/src/main/javascript/commands/MoveControlPointCommand.js
@@ -17,7 +17,7 @@
  */
 mindplot.commands.MoveControlPointCommand = new Class({
     Extends:mindplot.Command,
-    initialize: function(ctrlPointController, point) {
+    initialize:function (ctrlPointController, point) {
         $assert(ctrlPointController, 'line can not be null');
         $assert($defined(point), 'point can not be null');
 
@@ -40,7 +40,7 @@ mindplot.commands.MoveControlPointCommand = new Class({
         this._point = point;
     },
 
-    execute: function(commandContext) {
+    execute:function (commandContext) {
         var model = this._line.getModel();
         switch (this._point) {
             case 0:
@@ -64,7 +64,7 @@ mindplot.commands.MoveControlPointCommand = new Class({
         this._line.getLine().updateLine(this._point);
     },
 
-    undoExecute: function(commandContext) {
+    undoExecute:function (commandContext) {
         var line = this._line;
         var model = line.getModel();
         switch (this._point) {