Although 12 years have passed, I will still write the notes, since I myself was looking for an answer.
Now in "ip firewall mangle" is among the action "action = clear-df".
APPE is not too common used command on FTP server, currently we do not have
plans to support it,
We will consider it for the future.
I'm also need to stop this (maybe it some option in config for future releases?). Now a'm using ROS 6.23.Is there some way to stop this?