From 0c3625cd185992752fa8bf1dd1343d4857af1d73 Mon Sep 17 00:00:00 2001
From: Fedor Katurov <gotham48@gmail.com>
Date: Wed, 8 Apr 2020 15:43:50 +0700
Subject: [PATCH] fixed flow-display error

---
 src/components/flow/Cell/index.tsx | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/components/flow/Cell/index.tsx b/src/components/flow/Cell/index.tsx
index 47422465..c687156f 100644
--- a/src/components/flow/Cell/index.tsx
+++ b/src/components/flow/Cell/index.tsx
@@ -102,9 +102,10 @@ const Cell: FC<IProps> = ({
   }, [id, flow, onChangeCellView]);
 
   const thumb = useMemo(() => {
-    const preset = THUMBNAIL_SIZES[flow.display] || THUMBNAIL_SIZES.default;
+    const preset =
+      (flow && flow.display && THUMBNAIL_SIZES[flow.display]) || THUMBNAIL_SIZES.default;
     return getURL({ url: thumbnail }, preset);
-  }, [thumbnail, flow.display]);
+  }, [thumbnail, flow]);
 
   return (
     <div className={classNames(styles.cell, styles[(flow && flow.display) || 'single'])} ref={ref}>