From 30f633d6ccc1c251842830bd0646ff57c535aad9 Mon Sep 17 00:00:00 2001
From: Alexander Zinchuk <alx.zinchuk@gmail.com>
Date: Thu, 24 Jun 2021 18:42:28 +0300
Subject: [PATCH] Transition: Fix disappearing content

---
 src/components/ui/Transition.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/components/ui/Transition.tsx b/src/components/ui/Transition.tsx
index fa38f6862..5be8bb785 100644
--- a/src/components/ui/Transition.tsx
+++ b/src/components/ui/Transition.tsx
@@ -87,7 +87,7 @@ const Transition: FC<OwnProps> = ({
 
   useLayoutEffect(() => {
     function cleanup() {
-      if (!shouldCleanup || cleanupExceptionKey === prevActiveKey) {
+      if (!shouldCleanup || (cleanupExceptionKey !== undefined && cleanupExceptionKey === prevActiveKey)) {
         return;
       }