after review

Author: albozek

src/bundle/Resources/public/js/scripts/sidebar/extra.actions.js

@@ -74,14 +74,13 @@ import { getInstance } from '@ibexa-admin-ui/src/bundle/Resources/public/js/scri
         restoreInitialFormData(actions);
     };
     const dispatchAfterOpenEvent = (actions) => {
-        actions.addEventListener('transitionend', function handler(event) {
+        actions.addEventListener('transitionend', (event) => {
             if (event.propertyName !== 'transform') {
                 return;
             }
 
-            actions.removeEventListener('transitionend', handler);
             doc.body.dispatchEvent(new CustomEvent('ibexa-extra-actions:after-open'));
-        });
+        }, { once: true });
     };
     const toggleExtraActionsWidget = (widgetData) => {
         const actions = doc.querySelector(`.ibexa-extra-actions[data-actions="${widgetData.actions}"]`);