I went ahead and linked this to http://bugzilla.gnome.org/show_bug.cgi?id=104052; it really does look like the same bug. Feel free to beat me with a fish if I'm wrong.
** Bug watch added: GNOME Bug Tracker #104052 http://bugzilla.gnome.org//show_bug.cgi?id=104052 ** Also affects: gnome-vfs (upstream) via http://bugzilla.gnome.org//show_bug.cgi?id=104052 Severity: Unknown Priority: Unknown Status: Unknown -- setgid not respected when copying into a directory https://launchpad.net/malone/bugs/36647 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs