From b6208ee52f1094426e9151b33443d75540671e50 Mon Sep 17 00:00:00 2001
From: Jakob Ackermann <jakob.ackermann@overleaf.com>
Date: Wed, 1 Jul 2026 11:38:55 +0200
Subject: [PATCH] [real-time] gracefully handle undefined meta.tc (#35049)

GitOrigin-RevId: c375373585e4cb2405eac778bbe2dd987c342a19
---
 services/real-time/app/js/Router.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/services/real-time/app/js/Router.js b/services/real-time/app/js/Router.js
index e683c0d261..7d68a6911a 100644
--- a/services/real-time/app/js/Router.js
+++ b/services/real-time/app/js/Router.js
@@ -33,7 +33,7 @@ const applyOtUpdateSchema = z.object({
     lastV: z.number().optional(),
     meta: z
       .strictObject({
-        tc: z.string(),
+        tc: z.string().optional(),
       })
       .optional(),
     op: z