fix

src/model-workaround.ts

@@ -12,7 +12,7 @@ declare module '@minatojs/core' {
 
 // eslint-disable-next-line @typescript-eslint/ban-types
 Model.prototype.parse = function (this: Model, source: object) {
-  const result: any = Object.create(this.internal?.['']);
+  const result: any = Object.create(this.internal?.[''] ?? {});
   for (const key in source) {
     let node = result;
     const segments = key.split('.').reverse();