From 2e5d7deb60ee66933e8ac72179d21a6a5fbd7428 Mon Sep 17 00:00:00 2001
From: Igor Rosliakov <sozdayka@gmail.com>
Date: Tue, 20 Apr 2021 17:56:59 +0300
Subject: [PATCH] fixed issue 1987

---
 src/track.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/track.js b/src/track.js
index f8924c826..5ba2e68a8 100644
--- a/src/track.js
+++ b/src/track.js
@@ -84,7 +84,7 @@ const getSlideStyle = spec => {
   return style;
 };
 
-const getKey = (child, fallbackKey) => child.key || fallbackKey;
+const getKey = (child, fallbackKey) => child.key || 'fallback-' + fallbackKey;
 
 const renderSlides = spec => {
   let key;