diff --git a/packages/workflow/src/AugmentObject.ts b/packages/workflow/src/AugmentObject.ts
index dd4e868f85bcbf..b681b08aad3009 100644
--- a/packages/workflow/src/AugmentObject.ts
+++ b/packages/workflow/src/AugmentObject.ts
@@ -134,8 +134,7 @@ export function augmentObject<T extends object>(data: T): T {
 		},
 		has(target, key) {
 			if (deletedProperties.indexOf(key) !== -1) return false;
-			const newKeys = Object.keys(newData);
-			return Reflect.has(newKeys.length ? newData : target, key);
+			return Reflect.has(newData, key) || Reflect.has(target, key);
 		},
 		ownKeys(target) {
 			const originalKeys = Reflect.ownKeys(target);