PHP Deprecated: preg_replace(): Passing null to parameter #3 ..

Getting lots of these entries in debug.log

[25-Mar-2024 16:34:44 UTC] PHP Deprecated:  preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in ../wp-includes/formatting.php on line 4813

Reason is tag_escape() call with null as parameter in list-category-posts/include/lcp-catlistdisplayer.php line 264:

$tag = tag_escape($this->params['title_tag']) ?: tag_escape($tag);

List category posts 0.89.8, WordPress 6.4.3, PHP 8.1.x