From 1d87607bd4e40b2d1723e8ad069d77cdd498a7ed Mon Sep 17 00:00:00 2001
From: George Fleming <v-geflem@microsoft.com>
Date: Thu, 28 Apr 2016 11:44:09 -0700
Subject: [PATCH] Fix Undo/Redo

---
 src/Microsoft.PowerShell.PSReadLine/UndoRedo.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Microsoft.PowerShell.PSReadLine/UndoRedo.cs b/src/Microsoft.PowerShell.PSReadLine/UndoRedo.cs
index 128e6548ec..f54a96a87a 100644
--- a/src/Microsoft.PowerShell.PSReadLine/UndoRedo.cs
+++ b/src/Microsoft.PowerShell.PSReadLine/UndoRedo.cs
@@ -76,7 +76,8 @@ namespace Microsoft.PowerShell
                     _singleton.ClearStatusMessage(render: false);
                 }
                 _singleton._edits[_singleton._undoEditIndex - 1].Undo();
-                _singleton._edits.RemoveAt(_singleton._undoEditIndex - 1);
+                // How do you redo if you remove it permanently?
+//                _singleton._edits.RemoveAt(_singleton._undoEditIndex - 1);
                 _singleton._undoEditIndex--;
                 if (_singleton._options.EditMode == EditMode.Vi && _singleton._current >= _singleton._buffer.Length)
                 {