Ticket #44510: 44510.diff

user.php

@@ -362 +362 @@
 function count_user_posts( $userid, $post_type = 'post', $public_only = false ) {
         global $wpdb;
 
+        if( $userid === NULL AND !is_user_logged_in() ){
+                return 0;
+        }
+
         $where = get_posts_by_author_sql( $post_type, true, $userid, $public_only );
 
         $count = $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->posts $where" );