Ticket #9518: 9518.diff

wp-includes/theme.php

@@ -948 +948 @@
         update_option('template', $template);
         update_option('stylesheet', $stylesheet);
         delete_option('current_theme');
+        delete_transient('update_theme');
         $theme = get_current_theme();
         do_action('switch_theme', $theme);
 }