Description of Problem:
when I connect to a remote ftp filesystem and try to copy
file(s) on it, mc will always create the copy of the file
in /tmp/ftpfs* before the actual transmission is performed.
This is annoying especially while copying large files.
The machine can run out of free hard disk space this way.
If several files are selected to copy, every file is copied
to /tmp/ftpfs* , but is not deleted immediately after the actual
file is copied but after the whole transmission is finished.
So, again, the hard disk space can be wasted even when many
small files are copied.

Version-Release number of selected component (if applicable):
mc-4.5.55-12

How Reproducible:
every time

Steps to Reproduce:
1. connect to remote ftp filesystem
2. try to copy a large file or many small files
3. while transmission is in progress, watch files /tmp/ftpfs*

Actual Results:
All files selected to be copied are copied to /tmp/ftpfs* first.

Expected Results:
Is it necessary to use /tmp at all?

Additional Information: