From 5e4fce1e12e8383ca9260ab83a58d4fe0667b651 Mon Sep 17 00:00:00 2001
From: Dave Conway-Jones <dceejay@gmail.com>
Date: Sat, 27 May 2023 17:51:21 +0100
Subject: [PATCH] Fix delay node flush issue

to close #4202
---
 packages/node_modules/@node-red/nodes/core/function/89-delay.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/node_modules/@node-red/nodes/core/function/89-delay.js b/packages/node_modules/@node-red/nodes/core/function/89-delay.js
index 6d4843caf..0b9ca412f 100644
--- a/packages/node_modules/@node-red/nodes/core/function/89-delay.js
+++ b/packages/node_modules/@node-red/nodes/core/function/89-delay.js
@@ -229,6 +229,7 @@ module.exports = function(RED) {
             node.on("input", function(msg, send, done) {
                 if (!node.drop) {
                     var m = RED.util.cloneMessage(msg);
+                    delete m.flush;
                     if (Object.keys(m).length > 1) {
                         if (node.intervalID !== -1) {
                             if (node.allowrate && m.hasOwnProperty("rate") && !isNaN(parseFloat(m.rate)) && node.rate !== m.rate) {