Ticket #34182: 34182.diff

src/wp-admin/includes/theme.php

@@ -83 +83 @@
                 }
         }
 
+        // Remove the theme from allowed themes on the network.
+        if ( is_multisite() ) {
+                WP_Theme::network_disable_theme( $stylesheet );
+        }
+
         // Force refresh of theme update information.
         delete_site_transient( 'update_themes' );