Due to non handling of url fixing, we're getting while executing fix-stats.php:

Fatal error: Call to a member function update() on a non-object in /srv/mediawiki/php-1.27.0-wmf.3/extensions/ContentTranslation/scripts/fix-stats.php on line 78

See:

77: $this->output( "$count rows ARE updated to set target_url to null\n" );