diff --git a/common/commonspace/space.go b/common/commonspace/space.go
index a1ce64b0..4c654e17 100644
--- a/common/commonspace/space.go
+++ b/common/commonspace/space.go
@@ -108,7 +108,7 @@ func (s *space) LastUsage() time.Time {
 }
 
 func (s *space) Locked() bool {
-	log.With(zap.Bool("locked", s.treesUsed.Load() > 1)).Debug("space lock status check")
+	log.With(zap.Int32("trees used", s.treesUsed.Load())).Debug("space lock status check")
 	return s.treesUsed.Load() > 1
 }
 
diff --git a/common/commonspace/synctree/synctree.go b/common/commonspace/synctree/synctree.go
index 69fe04a4..c6461c8a 100644
--- a/common/commonspace/synctree/synctree.go
+++ b/common/commonspace/synctree/synctree.go
@@ -100,6 +100,9 @@ func DeriveSyncTree(ctx context.Context, deps CreateDeps) (t SyncTree, err error
 		syncTree.listener.Rebuild(syncTree)
 	}
 	syncTree.treeUsage.Add(1)
+	if syncTree.notifiable != nil {
+		syncTree.notifiable.UpdateHeads(objTree.ID(), objTree.Heads())
+	}
 
 	headUpdate := syncClient.CreateHeadUpdate(t, nil)
 	err = syncClient.BroadcastAsync(headUpdate)
@@ -133,6 +136,9 @@ func CreateSyncTree(ctx context.Context, deps CreateDeps) (t SyncTree, err error
 		syncTree.listener.Rebuild(syncTree)
 	}
 	syncTree.treeUsage.Add(1)
+	if syncTree.notifiable != nil {
+		syncTree.notifiable.UpdateHeads(objTree.ID(), objTree.Heads())
+	}
 
 	headUpdate := syncClient.CreateHeadUpdate(t, nil)
 	err = syncClient.BroadcastAsync(headUpdate)