From f08ae09efc61e2c5b0635084f8632e0d9b11dc09 Mon Sep 17 00:00:00 2001
From: Daniel Lautzenheiser <lautzd@gmail.com>
Date: Fri, 14 Jul 2023 09:50:46 -0400
Subject: [PATCH] fix: handle bad data in list preview

---
 packages/core/src/widgets/list/ListPreview.tsx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/core/src/widgets/list/ListPreview.tsx b/packages/core/src/widgets/list/ListPreview.tsx
index 3a46153a..e9653322 100644
--- a/packages/core/src/widgets/list/ListPreview.tsx
+++ b/packages/core/src/widgets/list/ListPreview.tsx
@@ -38,6 +38,10 @@ function renderNestedList(
 }
 
 const ListPreview: FC<WidgetPreviewProps<ValueOrNestedValue[], ListField>> = ({ field, value }) => {
+  if (!Array.isArray(value)) {
+    return null;
+  }
+
   return (
     <div style={{ marginTop: '12px' }}>
       <label>