fix(core): Prevent augmentObject from creating infinitely deep proxies (#5893)

fixes #5848

packages/workflow/src/AugmentObject.ts

@@ -1,18 +1,9 @@
 import type { IDataObject } from './Interfaces';
 
 const augmentedObjects = new WeakSet<object>();
+
 function augment<T>(value: T): T {
-	if (
+	if (typeof value !== 'object' || value === null || value instanceof RegExp) return value;
-		typeof value !== 'object' ||
-		value === null ||
-		value instanceof RegExp ||
-		augmentedObjects.has(value)
-	)
-		return value;
-
-	// Track augmented objects to prevent infinite recursion in cases where an object contains circular references
-	augmentedObjects.add(value);
-
 	if (value instanceof Date) return new Date(value.valueOf()) as T;
 
 	// eslint-disable-next-line @typescript-eslint/no-use-before-define
@@ -23,6 +14,8 @@ function augment<T>(value: T): T {
 }
 
 export function augmentArray<T>(data: T[]): T[] {
+	if (augmentedObjects.has(data)) return data;
+
 	let newData: unknown[] | undefined = undefined;
 
 	function getData(): unknown[] {
@@ -32,7 +25,7 @@ export function augmentArray<T>(data: T[]): T[] {
 		return newData;
 	}
 
-	return new Proxy(data, {
+	const proxy = new Proxy(data, {
 		deleteProperty(target, key: string) {
 			return Reflect.deleteProperty(getData(), key);
 		},
@@ -63,24 +56,25 @@ export function augmentArray<T>(data: T[]): T[] {
 			return Reflect.ownKeys(newData !== undefined ? newData : target);
 		},
 		set(target, key: string, newValue: unknown) {
-			if (newValue !== null && typeof newValue === 'object') {
 			// Always proxy all objects. Like that we can check in get simply if it
 			// is a proxy and it does then not matter if it was already there from the
 			// beginning and it got proxied at some point or set later and so theoretically
 			// does not have to get proxied
-				newValue = new Proxy(newValue, {});
+			return Reflect.set(getData(), key, augment(newValue));
-			}
-
-			return Reflect.set(getData(), key, newValue);
 		},
 	});
+
+	augmentedObjects.add(proxy);
+	return proxy;
 }
 
 export function augmentObject<T extends object>(data: T): T {
+	if (augmentedObjects.has(data)) return data;
+
 	const newData = {} as IDataObject;
 	const deletedProperties: Array<string | symbol> = [];
 
-	return new Proxy(data, {
+	const proxy = new Proxy(data, {
 		get(target, key: string, receiver): unknown {
 			if (deletedProperties.indexOf(key) !== -1) {
 				return undefined;
@@ -144,4 +138,7 @@ export function augmentObject<T extends object>(data: T): T {
 			};
 		},
 	});
+
+	augmentedObjects.add(proxy);
+	return proxy;
 }