tree messages need no answer

1 files changed, 8 insertions, 1 deletions

diff --git a/src/swarm/relay.rs b/src/swarm/relay.rs
index f141dbb..98d4ca0 100644
--- a/src/swarm/relay.rs
+++ b/src/swarm/relay.rs
@@ -126,8 +126,15 @@ pub(crate) async fn announce(state: &AppState, from: &str, writers: &[u64], unau
         let slow = slow.get_or_insert_with(Pending::default);
         slow.senders.insert(from.to_owned());
         slow.all = true;
+        // Our children were sent the changes, but those that reach no member but us
+        // hear of a lost message from nobody else (`Plan::alone`).
         for plan in &plans {
-            slow.sent.extend(plan.children.iter().cloned());
+            slow.sent.extend(
+                plan.children
+                    .iter()
+                    .filter(|child| !plan.alone.contains(child))
+                    .cloned(),
+            );
         }
         schedule
     };