Moodle 2.0 group-members-only for activities not working in most recent versions of Moodle 2.0.
See complete report in this discussion:
Joseph, thanks for your report and for checking that the problem is reproducible on the QA Testing site.
This will be most probably committed tomorrow and will be part of 2.0.2, thanks a lot for the report! Sorry for the regression...
This has been integrated and is now available both via git and cvs (and in some hours, via mirrors and downloads).
fixed incorrect summary and description.