Noticed after deploying 1.33.0-wmf.9 to group 0:
[XBkHzgpAAEUAAGeCR3oAAACB] /wiki/Special:ExtensionDistributor?extdistname=PropertySuggester&extdistversion=REL1_30 ErrorException from line 317 of /srv/mediawiki/php-1.33.0-wmf.9/extensions/ExtensionDistributor/includes/specials/SpecialBaseDistributor.php: PHP Notice: Undefined variable: downloadImg