some additional robustness for expose.fuse
some additional robustness for expose.fuse

pmitros/pyfs,pmitros/pyfs,piranna/pyfilesystem,pombreda/pyfilesystem,PyFilesystem/pyfilesystem,flying-circus/pyfilesystem,zopyx/pyfilesystem,rivenz/pyfilesystem,Konubinix/pyfilesystem