refactor(checkout): materialize purchase item snapshots at start

app/Domains/Purchase/Services/Checkout/ReleaseCheckoutService.php

@@ -96,12 +96,6 @@ class ReleaseCheckoutService
                 return $this->loadPurchase($purchase);
             }
 
-            if ($purchase->items()->exists()) {
-                throw ValidationException::withMessages([
-                    'items' => __('api.purchase.inconsistent_reservation'),
-                ]);
-            }
-
             $reservationReturnedToCart = $restoreCart && $this->sourceCart->restore($purchase);
             $this->releaseCartReservations($purchase, $reservationReturnedToCart, $targetStatus);
 
@@ -181,15 +175,6 @@ class ReleaseCheckoutService
 
     private function loadPurchase(Purchase $purchase): Purchase
     {
-        return $purchase->load([
-            'items.imageAttachment',
-            'cart.items.catalogItem.inventory',
-            'cart.items.catalogItem.attachments',
-            'cart.items.variant.inventory',
-            'cart.items.variant.attachments',
-            'cart.items.variant.definitions.itemAttribute.attribute',
-            'cart.items.variant.eventDates',
-            'cart.items.variant.eventDate',
-        ]);
+        return $purchase->load(['items.imageAttachment']);
     }
 }