Merge pull request #4473 from annando/issue-4228

Don't post an item if it belongs to a picture upload without an post

src/Protocol/OStatus.php

@@ -2128,6 +2128,7 @@ class OStatus
 				AND `item`.`created` > '%s'
 				AND NOT `item`.`deleted`
 				AND NOT `item`.`private`
+				AND `item`.`visible`
 				AND `thread`.`network` IN ('%s', '%s')
 				$sql_extra
 				ORDER BY `item`.`created` DESC LIMIT %d",