A mistake in auth.py in the last release of FAS was preventing people from applying to any CLA groups, which is needed for groups like cla_redhat, etc. I have patched /usr/lib/python2.4/site-packages/fas/auth.py on fas1/fas2 to change line 165 from

{{{
if person == applicant and group.group_type not in ('cla', 'system'):
}}}

to

{{{
if person == applicant and group.group_type not in ('system',):
}}}