Fix: Adding check for duplicate transaction

package.json

@@ -1,6 +1,6 @@
 {
     "name": "@boboko/core",
-    "version": "0.27.1",
+    "version": "0.27.2",
     "private": true,
     "type": "module",
     "description": "Portable Stimulus controllers and styles for boboko-core's cart + checkout module. Installed as a real npm dependency (file:../boboko-core in dev, a tagged git install in prod) so a consuming app's `npm install` resolves this package's own dependencies (leaflet, @hotwired/stimulus) transitively, the same way `composer update boboko/*` does for PHP. See CONTRIBUTE.md's \"JS/CSS: a real npm package\" section.",