Upgrade/Install: Fix upgrade count decrement on Updates page.

Fixes a JavaScript error that caused the update count bubble not to decrement when updating a plugin.

Props nendeb55, swissspidy.
Fixes #60589.
Built from https://develop.svn.wordpress.org/trunk@57696


git-svn-id: http://core.svn.wordpress.org/trunk@57197 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/updates.js

@@ -3260,7 +3260,7 @@
 				$message.text( message.text );
 			}
 
-			if ( 'undefined' === typeof message.action || 'undefined' === typeof message.data.slug ) {
+			if ( 'undefined' === typeof message.action ) {
 				return;
 			}
 
@@ -3274,6 +3274,10 @@
 
 				case 'install-plugin':
 				case 'update-plugin':
+					if ( 'undefined' === typeof message.data || 'undefined' === typeof message.data.slug ) {
+						return;
+					}
+
 					message.data = wp.updates._addCallbacks( message.data, message.action );
 
 					wp.updates.queue.push( message );

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.5-beta2-57695';
+$wp_version = '6.5-beta2-57696';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.