From d590bbdd2c95031702cd27fce8cae6b19b9b3c83 Mon Sep 17 00:00:00 2001
From: Nick O'Leary <nick.oleary@gmail.com>
Date: Tue, 4 Aug 2020 20:59:51 +0100
Subject: [PATCH] Fix copy/paste of nested groups

---
 .../node_modules/@node-red/editor-client/src/js/nodes.js   | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/packages/node_modules/@node-red/editor-client/src/js/nodes.js b/packages/node_modules/@node-red/editor-client/src/js/nodes.js
index 1ea08193e..84499ffe6 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/nodes.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/nodes.js
@@ -998,6 +998,7 @@ RED.nodes = (function() {
         var new_nodes = [];
         var new_links = [];
         var new_groups = [];
+        var new_group_set = new Set();
         var nid;
         var def;
         var configNode;
@@ -1326,6 +1327,7 @@ RED.nodes = (function() {
                         new_nodes.push(node);
                     } else if (node.type === "group") {
                         new_groups.push(node);
+                        new_group_set.add(node.id);
                     }
                 }
             }
@@ -1433,9 +1435,8 @@ RED.nodes = (function() {
         var groupDepthMap = {};
         for (i=0;i<new_groups.length;i++) {
             n = new_groups[i];
-            if (n.g && node_map[n.g]) {
-                n.g = node_map[n.g].id;
-            } else {
+
+            if (n.g && !new_group_set.has(n.g)) {
                 delete n.g;
             }
             n.nodes = n.nodes.map(function(id) {