From 0d0c05d1d3c4ef94fc15d17b5f2602729539ec8e Mon Sep 17 00:00:00 2001
From: Wesley Wigham <t-weswig@microsoft.com>
Date: Thu, 29 Oct 2015 18:50:11 -0700
Subject: [PATCH] that feling when you ctrl-z 1 too many times

---
 src/compiler/checker.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 30edecf3b40..8ae8ab3d54c 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -6334,7 +6334,7 @@ namespace ts {
                         }
 
                         // Use original type if construct contains assignments to variable
-                        if (!nodeStack.length && isVariableAssignedWithin(symbol, node)) {
+                        if (type != originalType && isVariableAssignedWithin(symbol, node)) {
                             type = originalType;
                         }
                     }