fix(order): update add item unit price (#12072)

.changeset/clean-doors-cover.md

@@ -0,0 +1,5 @@
+---
+"@medusajs/order": patch
+---
+
+fix(order): update add item unit price

packages/modules/order/src/services/order-module-service.ts

@@ -2326,6 +2326,9 @@ export default class OrderModuleService
         const compareAtUnitPrice =
           newItem?.compare_at_unit_price ?? item.compare_at_unit_price
 
+        delete lineItem.raw_unit_price
+        delete lineItem.raw_compare_at_unit_price
+
         order.items[idx] = {
           ...lineItem,
           actions,