From 94c9da468e8ee32be50fd587cf1b3a64cf20c72c Mon Sep 17 00:00:00 2001
From: Kunihiko Toumura <kunihiko.toumura.yv@hitachi.com>
Date: Thu, 4 Jul 2019 08:26:39 +0100
Subject: [PATCH] fix initialization bug

---
 packages/node_modules/@node-red/editor-client/src/js/history.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/node_modules/@node-red/editor-client/src/js/history.js b/packages/node_modules/@node-red/editor-client/src/js/history.js
index b59af14d5..36acb4a2c 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/history.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/history.js
@@ -167,6 +167,7 @@ RED.history = (function() {
                 if (ev.subflow) {
                     inv_ev.subflow = {};
                     if (ev.subflow.hasOwnProperty('instances')) {
+                        inv_ev.subflow.instances = [];
                         ev.subflow.instances.forEach(function(n) {
                             inv_ev.subflow.instances.push(n);
                             var node = RED.nodes.node(n.id);