logging instructions does not works with tahoe-lafs backend

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Mount tahoe with fuse, mount script looks like following:
#!/usr/bin/env python

import logging
import sys

from fs.contrib.tahoelafs import TahoeLAFS
from fs.expose import fuse

MOUNT_POINT="/mnt/tahoe"
DIR_CAP="URI:DIR2:XXX"

fs = TahoeLAFS(DIR_CAP)
mp = fuse.mount(fs, MOUNT_POINT)

2. Follow logging instructions from here: 
http://packages.python.org/fs/contrib/tahoelafs.html, copy-paste logging code 
before creating fs object.

Expected: lots of debug messages to stdout or log file (I've also tried file 
handlers).

Actual result: no logging.

pyfilesystem 0.4.1 (latest svn rev), python 2.7, linux x86_64

Original issue reported on code.google.com by vladi...@greenmice.info on 26 Dec 2011 at 7:36

[GoogleCodeExporter]

Ok, logging actually works, but only if mounted in foreground mode. Is there 
any way to mount in background and still have some logs if FileHandler?

Original comment by vladi...@greenmice.info on 26 Dec 2011 at 7:56