Ticket #27056: 27056.4.patch

src/wp-admin/post.php

@@ -275 +275 @@
         exit();
 
 default:
+        /**
+         * Fires for a given custom post action request.
+         *
+         * The dynamic portion of the hook name, `$action`, refers to the custom post action.
+         *
+         * @since 4.6.0
+         *
+         * @param int $post_id Post ID sent with the request.
+         */
+        do_action( "post_action_{$action}", $post_id );
+
         wp_redirect( admin_url('edit.php') );
         exit();
 } // end switch