Ticket #46900: 46900.patch

src/wp-admin/includes/class-wp-site-health.php

@@ -416 +416 @@
                 $themes_inactive     = 0;
 
                 // This value is changed during processing to determine how many themes are considered a reasonable amount.
-                $allowed_theme_count = 1;
+                $allowed_theme_count = 0;
 
                 $has_default_theme   = false;
                 $has_unused_themes   = false;