From 24b249455e1421d1bb104bea3ab36a74465c141c Mon Sep 17 00:00:00 2001
From: Oliver Gugger <gugger@gmail.com>
Date: Tue, 17 Oct 2023 20:08:48 +0200
Subject: [PATCH] universe: don't use goroutine to send

Since we're closing the fetchedLeaves channel right below this call,
it's very likely that we run into a "send on closed channel" panic.
We fix that by making the send synchronous.
---
 universe/syncer.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/universe/syncer.go b/universe/syncer.go
index 02c990dec..dacde6d75 100644
--- a/universe/syncer.go
+++ b/universe/syncer.go
@@ -285,7 +285,7 @@ func (s *SimpleSyncer) syncRoot(ctx context.Context, remoteRoot BaseRoot,
 				transferLeaves[j].Leaf.Proof.BlockHeight
 		})
 
-		go fn.SendAll(fetchedLeaves, transferLeaves...)
+		fn.SendAll(fetchedLeaves, transferLeaves...)
 	}
 
 	// And now we wait for the batch streamer to finish as well.