Previously, the attachment URL would simply be dropped when shortening returned false instead of a short URL... the attachment was present if you clicked through to notice details but didn't appear in the timeline, making it nigh-impossible to see the attachment.
$this->maybeAddRedir($fileRecord->id, $fileurl);
$short_fileurl = common_shorten_url($fileurl);
+ if (!$short_fileurl) {
+ // todo -- Consider forcing default shortener if none selected?
+ $short_fileurl = $fileurl;
+ }
$content_shortened .= ' ' . $short_fileurl;
if (mb_strlen($content_shortened) > 140) {