Received the following notice on search community course:

Notice: Undefined property: stdClass::$backupsize in /moodle/blocks/community/renderer.php on line 273

To reproduce:

1. enable 'community finder' block (site admin > plugins > blocks > manage blocks)
2. on home page, add side block 'community finder' and click 'search'
3. select 'mooch' hub, set find to 'courses I can download' and click 'search'