gui: adjust display of sync tree

Change-Id: Ie6afc35aae2a6414d3660cbb8151c625c43c0f69
diff --git a/src/digest-tree-scene.hpp b/src/digest-tree-scene.hpp
index 3720d4b..0e69528 100644
--- a/src/digest-tree-scene.hpp
+++ b/src/digest-tree-scene.hpp
@@ -51,6 +51,9 @@
                     const QString& digest);
 
   void
+  updateNode(QString sessionPrefix, QString nick, uint64_t seqNo);
+
+  void
   updateNick(QString sessionPrefix, QString nick);
 
   void