Merging //UE4/Dev-Main@6856949 to Dev-Rendering (//UE4/Dev-Rendering)

#lockdown marcus.wassmer
#rb none

[CL 6863606 by Juan Canada in Dev-Rendering branch]

Engine/Source/Editor/SourceControlWindows/Private/SSourceControlSubmit.h

@@ -99,10 +99,7 @@ public:
 
 	SLATE_END_ARGS()
 
-	/** Constructor */
-	SSourceControlSubmitWidget()
-	{
-	}
+	~SSourceControlSubmitWidget();
 
 	/** Constructs the widget */
 	void Construct(const FArguments& InArgs);
@@ -216,6 +213,9 @@ private:
 
 	/** Currently selected sorting mode */
 	EColumnSortMode::Type SortMode;
+
+	/** Submit Description saved when the widget is destroyed if canceled */
+	static FText SavedChangeListDescription;	
 };
 
 class SSourceControlSubmitListRow : public SMultiColumnTableRow<TSharedPtr<FSubmitItem>>