From 7b4c1f9c15388fbd4ce198e13899cb78723d0f81 Mon Sep 17 00:00:00 2001
From: Age Manning <Age@AgeManning.com>
Date: Thu, 18 Jan 2024 18:04:39 +1100
Subject: [PATCH] Fix panics?

---
 protocols/gossipsub/src/behaviour.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/protocols/gossipsub/src/behaviour.rs b/protocols/gossipsub/src/behaviour.rs
index 86f0eac43dd..80e487d72dc 100644
--- a/protocols/gossipsub/src/behaviour.rs
+++ b/protocols/gossipsub/src/behaviour.rs
@@ -1995,6 +1995,9 @@ where
 
         // remove unsubscribed peers from the mesh if it exists
         for (peer_id, topic_hash) in unsubscribed_peers {
+            self.fanout
+                .get_mut(&topic_hash)
+                .map(|peers| peers.remove(&peer_id));
             self.remove_peer_from_mesh(&peer_id, &topic_hash, None, false, Churn::Unsub);
         }