Fixed #16487

[ci skip]

CHANGELOG.md

@@ -12,6 +12,7 @@
 - Fixed a bug where lazy eager-loading was invoked even if the source element was queried alone.
 - Fixed a bug where element selection condition rules weren’t remembering their element ID value if they were created before Craft 5.6.
 - Fixed an error that could occur when saving a Commerce variant. ([#16789](https://github.com/craftcms/cms/pull/16789))
+- Fixed a bug where two entries could be created simultaneously when creating a new entry via the “New entry” menu on the Entries index page. ([#16487](https://github.com/craftcms/cms/issues/16487))
 - Fixed a styling issue. ([#16791](https://github.com/craftcms/cms/issues/16791))
 
 ## 5.6.10.2 - 2025-02-26

src/web/assets/cp/src/js/EntryIndex.js

@@ -200,7 +200,8 @@ Craft.EntryIndex = Craft.BaseElementIndex.extend({
                 section: section.name,
               }),
             }).appendTo($li);
-            this.addListener($a, 'activate', () => {
+            this.addListener($a, 'activate', (ev) => {
+              ev.originalEvent.preventDefault();
               $menuBtn.data('trigger').hide();
               this._createEntry(section.id);
             });