diff --git a/src/lib/config.ts b/src/lib/config.ts
index b8cd33af..63e9082c 100644
--- a/src/lib/config.ts
+++ b/src/lib/config.ts
@@ -1956,8 +1956,8 @@ function setDeepProperty(obj, value, target) {
  * Merges two objects and any child objects they may have
  */
 export function mergeDeep(o1, o2) {
-    if (o1 === null) return Object.assign({}, o2)
-    const r = Array.isArray(o1) ? o1.slice() : Object.create(o1)
+    if (o1 === null) return o(o2)
+    const r = Array.isArray(o1) ? o1.slice() : o({})
     Object.assign(r, o1, o2)
     if (o2 === undefined) return r
     Object.keys(o1)