do not send  folder_id when folder_id == 0
do not send  folder_id when folder_id == 0

fastladder/fastladder,ykzts/fastladder,fastladder/fastladder,ykzts/fastladder,fastladder/fastladder,id774/fastladder,id774/fastladder,ykzts/fastladder,id774/fastladder