Fix invoice

app/Invoice/Actions/MassStoreAction.php

@@ -42,9 +42,7 @@ class MassStoreAction
                 ->year($year);
 
             $invoice = Invoice::createFromFactory($factory);
-            $invoice->save();
-            $invoice->positions()->createMany($invoice->positions->toArray());
-            $invoices->push($invoice->fresh('positions'));
+            $invoices->push($invoice);
         }
 
         event(new InvoicesMassStored($year, $invoices));

app/Invoice/Models/Invoice.php

@@ -50,7 +50,8 @@ class Invoice extends Model
             'usage' => $factory->getUsage(),
         ]);
 
-        $invoice->setRelation('positions', $factory->getPositions()->toArray());
+        $invoice->save();
+        $invoice->positions()->createMany($factory->getPositions()->toArray());
 
         return $invoice;
     }