From 73448a6039ceeef61532c0d27bbb914287c8804a Mon Sep 17 00:00:00 2001
From: Nick O'Leary <nick.oleary@gmail.com>
Date: Mon, 6 Jul 2020 13:25:08 +0100
Subject: [PATCH] Avoid copying duplicate nodes to internal clipboard

---
 .../@node-red/editor-client/src/js/ui/view.js             | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/view.js b/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
index 8e4a75d99..fa1d1731c 100755
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
@@ -2137,8 +2137,13 @@ RED.view = (function() {
             var nns = [];
             var nodeCount = 0;
             var groupCount = 0;
+            var handled = {};
             for (var n=0;n<nodes.length;n++) {
                 var node = nodes[n];
+                if (handled[node.id]) {
+                    continue;
+                }
+                handled[node.id] = true;
                 // The only time a node.type == subflow can be selected is the
                 // input/output "proxy" nodes. They cannot be copied.
                 if (node.type != "subflow") {
@@ -4874,6 +4879,9 @@ RED.view = (function() {
             if (n._def.button) {
                 nodeButtonClicked(n);
             }
+        },
+        clipboard: function() {
+            return clipboard
         }
     };
 })();