[IMP] convert to native javascript module

pos_auto_invoice/static/src/js/models.esm.js

@@ -0,0 +1,23 @@
+/** @odoo-module **/
+
+import {Order} from "point_of_sale.models";
+import Registries from "point_of_sale.Registries";
+
+const AutoInvoiceOrder = (OriginalOrder) =>
+    class extends OriginalOrder {
+        constructor(obj, options) {
+            super(...arguments);
+            if (!options.json && this.pos.config.invoice_by_default) {
+                this.to_invoice = true;
+            }
+        }
+
+        init_from_JSON(json) {
+            super.init_from_JSON(...arguments);
+            // This should be done in the original method, but curiously
+            // it is not (to_invoice is always set to false).
+            this.to_invoice = json.to_invoice;
+        }
+    };
+
+Registries.Model.extend(Order, AutoInvoiceOrder);