honoring gid of a directory for new file

[Paul Northug]

When tramp is editing a new file over ssh, it does not seem to honor
the group id of the containing directory.

Here the directory is setgid to htpcgroup.

address@hidden:~/test$ ls -al

drwxrwsrwx  9 htpcuser htpcgroup 4096 2011-10-08 13:41 .
drwxrwsrwx 14 htpcuser htpcgroup 4096 2011-10-08 05:54 ..

address@hidden:~/test$ touch test; ls -al

drwxrwsrwx  9 htpcuser htpcgroup 4096 2011-10-08 13:41 .
drwxrwsrwx 14 htpcuser htpcgroup 4096 2011-10-08 05:54 ..
-rw-rw-r--  1 paul     htpcgroup    0 2011-10-08 13:42 test

But a new file created with tramp, test.tramp:

drwxrwsrwx  9 htpcuser htpcgroup 4096 2011-10-08 13:41 .
drwxrwsrwx 14 htpcuser htpcgroup 4096 2011-10-08 05:54 ..
-rw-rw-r--  1 paul     htpcgroup    0 2011-10-08 13:42 test
-rw-rw-r--  1 paul     paul         3 2011-10-08 07:56 test.tramp

sshfs preserves the group id. Can this behavior be modified?

Thanks,
Paul.