From df66d632fe197ea07c86fae86cd2f5deb0f6f82d Mon Sep 17 00:00:00 2001
From: chrisgoringe <chris.goringe@gmail.com>
Date: Wed, 20 Mar 2024 23:34:43 +1100
Subject: [PATCH] Resolve #3092

Don't set a widget value if it hasn't changed, to avoid triggering DOMWidget set callback
---
 web/extensions/core/groupNode.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/extensions/core/groupNode.js b/web/extensions/core/groupNode.js
index 0b0763d1..09acdc9a 100644
--- a/web/extensions/core/groupNode.js
+++ b/web/extensions/core/groupNode.js
@@ -1029,7 +1029,7 @@ export class GroupNodeHandler {
 			}
 
 			const widget = innerNode.widgets?.find((w) => w.name === old.inputName);
-			if (widget) {
+			if (widget && widget.value!=newValue) { // avoid DOMWidget callbacks if no change
 				widget.value = newValue;
 			}
 		}