From 892e14f3344b9ea666793eb24b9c83b6c4d5c919 Mon Sep 17 00:00:00 2001
From: Daniel Ciao <plusCubed@users.noreply.github.com>
Date: Fri, 19 May 2017 16:19:23 -0700
Subject: [PATCH] fix(VirtualScroll): initialize trackByFn reference (#11624)

* fix(VirtualScroll): initialize trackByFn reference

* fix(VirtualScroll): simplify fix for TrackByFn reference
---
 src/components/virtual-scroll/virtual-scroll.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/components/virtual-scroll/virtual-scroll.ts b/src/components/virtual-scroll/virtual-scroll.ts
index 805ff0c6c4..39fb389db8 100644
--- a/src/components/virtual-scroll/virtual-scroll.ts
+++ b/src/components/virtual-scroll/virtual-scroll.ts
@@ -528,7 +528,7 @@ export class VirtualScroll implements DoCheck, AfterContentInit, OnDestroy {
   }
 
   private _updateDiffer() {
-    if (isBlank(this._differ) && isPresent(this._records)) {
+    if (isPresent(this._records)) {
       this._differ = this._iterableDiffers.find(this._records).create(this._virtualTrackBy);
     }
   }