From 26e6a22278c426802e8f80e70cefcffc73653a25 Mon Sep 17 00:00:00 2001
From: Julian Lam <julian@nodebb.org>
Date: Thu, 8 May 2025 13:55:42 -0400
Subject: [PATCH] fix: #13397, null values in category sync list

---
 src/upgrades/4.3.2/fix_category_sync_null_values.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 src/upgrades/4.3.2/fix_category_sync_null_values.js

diff --git a/src/upgrades/4.3.2/fix_category_sync_null_values.js b/src/upgrades/4.3.2/fix_category_sync_null_values.js
new file mode 100644
index 0000000000..e81590cf27
--- /dev/null
+++ b/src/upgrades/4.3.2/fix_category_sync_null_values.js
@@ -0,0 +1,12 @@
+'use strict';
+
+const db = require('../../database');
+
+module.exports = {
+	name: 'Fix null values in category synchronization list',
+	timestamp: Date.UTC(2025, 4, 8),
+	method: async () => {
+		const cids = await db.getSortedSetMembers('categories:cid');
+		await db.sortedSetsRemove(cids.map(cid => `followRequests:cid.${cid}`), 'null');
+	},
+};