problem with cfrun and groups

[Eric Doutreleau]

hi

i have some problems with cfrun and groups.

i have a class when it s negated reboot a machine under windows
for exemple when i launch on the local machine
/var/cfengine/sbin/cfagent -v -N nowinreboot
it works

then i want to launch it from my policy server
the hostname of the machine is b08-04

i ran
cfrun b08-04 -v -- -N nowinreboot --
it works

i ran
cfrun b08-04 -v -- -N nowinreboot -- b08_04
it works too

but if i ran
cfrun b08-04 -v -- -N nowinreboot -- salle_b08
it doesn't works even if the machine b08-04 is in the group salle_b08

Indeed i would live no to have to enumerate all the machine i want to 
reboot but only telling the group to cfrun.

Is it possible to have cfrun work this way?