Ticket #37273: 37273.diff

src/wp-admin/js/updates.js

@@ -637 +637 @@
 
                 wp.a11y.speak( wp.updates.l10n.installedMsg, 'polite' );
 
-                $document.trigger( 'wp-installer-install-success', response );
+                $document.trigger( 'wp-importer-install-success', response );
         };
 
         /**