From 8fa198071065fc70429affd94664710b46093604 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 2 Aug 2024 20:56:55 +0530
Subject: [PATCH] Another try at #2073972

---
 src/pyj/book_list/custom_list.pyj | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/pyj/book_list/custom_list.pyj b/src/pyj/book_list/custom_list.pyj
index 080236dba7..3cafe9d7da 100644
--- a/src/pyj/book_list/custom_list.pyj
+++ b/src/pyj/book_list/custom_list.pyj
@@ -61,6 +61,8 @@ def render_field(field, mi, book_id):  # {{{
     if field is 'id':
         return book_id + ''
     field_metadata = library_data.field_metadata
+    if not field_metadata:
+        return
     fm = field_metadata[field]
     if not fm or not mi:
         return