Going to previous slide no longer completes the slide.

src/app/Cockpit.Experiments.Web/App/Components/SlideShell/SlideShell.js

@@ -37,17 +37,17 @@ define(["require", "exports", "knockout", "Managers/Experiment", "Models/Slide"]
         };
         SlideShell.prototype.LoadNextSlide = function () {
             var _this = this;
-            this.UnloadSlide();
+            this.UnloadSlide(true);
             ExperimentManager.LoadNextSlide(function (index, questions) { return _this.SlideData(new SlideModel("Slides/Default", index, _this.AreAllQuestionsAnswered, questions)); });
         };
         SlideShell.prototype.GoToPreviousSlide = function () {
             var _this = this;
-            this.UnloadSlide();
+            this.UnloadSlide(false);
             ExperimentManager.LoadPreviousSlide(function (index, questions) { return _this.SlideData(new SlideModel("Slides/Default", index, _this.AreAllQuestionsAnswered, questions)); });
         };
-        SlideShell.prototype.UnloadSlide = function () {
+        SlideShell.prototype.UnloadSlide = function (complete) {
             this.IsHighlighted(false);
-            if (this.SlideData() != null) {
+            if (complete && this.SlideData() != null) {
                 var oldSlide = this.SlideData();
                 this.SlideData().Complete(function () { return ExperimentManager.CloseSlide(oldSlide.Index); });
             }

src/app/Cockpit.Experiments.Web/App/Components/SlideShell/SlideShell.ts

@@ -66,23 +66,23 @@ class SlideShell
 
 	private LoadNextSlide():void
 	{
-		this.UnloadSlide();
+		this.UnloadSlide(true);
 
 		ExperimentManager.LoadNextSlide((index, questions) => this.SlideData(new SlideModel("Slides/Default", index, this.AreAllQuestionsAnswered, questions)));
 	}
 
 	public GoToPreviousSlide():void
 	{
-		this.UnloadSlide();
+		this.UnloadSlide(false);
 
 		ExperimentManager.LoadPreviousSlide((index, questions) => this.SlideData(new SlideModel("Slides/Default", index, this.AreAllQuestionsAnswered, questions)));
 	}
 
-	private UnloadSlide():void
+	private UnloadSlide(complete:boolean):void
 	{
 		this.IsHighlighted(false);
 
-		if (this.SlideData() != null)
+		if (complete && this.SlideData() != null)
 		{
 			var oldSlide = this.SlideData();
 			this.SlideData().Complete(() => ExperimentManager.CloseSlide(oldSlide.Index));