Ticket #16600: 16600.diff

wp-includes/taxonomy.php

@@ -353 +353 @@
 
         $args['name'] = $taxonomy;
         $args['object_type'] = (array) $object_type;
+        $args['object_type'] = array_map( 'sanitize_key', $args['object_type'] );
 
         $args['labels'] = get_taxonomy_labels( (object) $args );
         $args['label'] = $args['labels']->name;