[folder-perm] fix bug when set perm to a sub dir
[folder-perm] fix bug when set perm to a sub dir

madflow/seahub,madflow/seahub,madflow/seahub,Chilledheart/seahub,madflow/seahub,miurahr/seahub,miurahr/seahub,madflow/seahub,Chilledheart/seahub,miurahr/seahub,Chilledheart/seahub,Chilledheart/seahub,Chilledheart/seahub,miurahr/seahub