From e8f9c442d6eb3f503234fd0b55a097db07e36fe1 Mon Sep 17 00:00:00 2001
From: Spencer Ahrens <sahrens@fb.com>
Date: Mon, 3 Apr 2017 18:36:28 -0700
Subject: [PATCH] Fix separator keys for LayoutAnimation

Summary:
Should key separators with their cells.

**Test Plan**

before/after in this video: https://youtu.be/vid1w5x8-58

Reviewed By: achen1

Differential Revision: D4821708

fbshipit-source-id: 261f1bac34dfa9001297a24a44f11128f338e62b
---
 Libraries/Lists/VirtualizedList.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Libraries/Lists/VirtualizedList.js b/Libraries/Lists/VirtualizedList.js
index 5adabc67199..51580c79aa4 100644
--- a/Libraries/Lists/VirtualizedList.js
+++ b/Libraries/Lists/VirtualizedList.js
@@ -351,7 +351,7 @@ class VirtualizedList extends React.PureComponent<OptionalProps, Props, State> {
         />
       );
       if (ItemSeparatorComponent && ii < end) {
-        cells.push(<ItemSeparatorComponent key={'sep' + ii}/>);
+        cells.push(<ItemSeparatorComponent key={'sep' + key}/>);
       }
     }
   }