"groups_forbidden_names" filter does not work

[r-a-y]

I wanted to add a group slug to the "groups_forbidden_names" filter ( located in groups_setup_globals() ).
However I wasn't able to add the group slug to the filter.

Had to resort to adding the slug to the $bp global, which works but is this just a case of me staring in front of the LCD too long?

[boonebgorges]

Works for me on the latest trunk. Test again and reopen if you're still having problems.