feat(core-flows): manage inventory reservation of claims and exchanges (#8448)

integration-tests/http/__tests__/exchanges/exchanges.spec.ts

@@ -489,7 +489,7 @@ medusaIntegrationTestRunner({
 
         result = (
           await api.get(
-            `/admin/exchanges?fields=*additional_items`,
+            `/admin/exchanges?fields=+metadata,*additional_items`,
             adminHeaders
           )
         ).data.exchanges