From 9f4820d5d121025e908da9ca98783f2827044768 Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Wed, 4 Nov 2026 21:02:20 +0100
Subject: changes from a peer never go back

---
 src/swarm/sync.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/swarm')

diff --git a/src/swarm/sync.rs b/src/swarm/sync.rs
index 00ba1ad..07c990c 100644
--- a/src/swarm/sync.rs
+++ b/src/swarm/sync.rs
@@ -442,6 +442,10 @@ pub(crate) async fn handle_sync(
             }
             stats.heads_seen(heads_after.len());
             let changed = heads_after != heads_before;
+            if changed {
+                // They came from it: none goes back (`SyncSession::came_from_peer`).
+                peer_state.sync.came_from_peer(&replica.doc, &heads_before);
+            }
             if carried && !changed {
                 stats.nothing_new(payload_len, writer.is_some(), delivered);
             }
-- 
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