Merge pull request #3481 from Steve-Mcl/fix-node-val-changed

do JSON comparison of old value/new value

packages/node_modules/@node-red/editor-client/src/js/ui/editors/panes/properties.js

@@ -107,7 +107,7 @@
                                         newValue = "";
                                     }
                                 }
-                                if (node[d] != newValue) {
+                                if (!isEqual(node[d], newValue)) {
                                     if (node._def.defaults[d].type) {
                                         // Change to a related config node
                                         var configNode = RED.nodes.node(node[d]);
@@ -139,6 +139,23 @@
         }
     });
 
+    /**
+     * Compares `newValue` with `originalValue` for equality.  
+     * @param {*} originalValue Original value
+     * @param {*} newValue New value
+     * @returns {boolean} true if originalValue equals newValue, otherwise false
+     */
+     function isEqual(originalValue, newValue) {
+        try {
+            if(originalValue == newValue) {
+                return true; 
+            }
+            return JSON.stringify(originalValue) === JSON.stringify(newValue);
+        } catch (err) {
+            return false;
+        }
+    }
+
     /**
      * Update the node credentials from the edit form
      * @param node - the node containing the credentials