Replacing gvfs and gvfs-backends with the ones from Maverick (Ubuntu 10.10) seems to fix this problem, so it seems that the bug is there (probably in gvfsd-ftp backend).
Replacing gvfs and gvfs-backends with the ones from Maverick (Ubuntu 10.10) seems to fix this problem, so it seems that the bug is there (probably in gvfsd-ftp backend).