As joel said in bug 254442, the makeproductgroups parameter was used for compatibility with very old Bugzilla installations only, something like < 2.18. 11 years later, this parameter should die.
Created attachment 8570575 [details] [diff] [review] Patch v.1
Comment on attachment 8570575 [details] [diff] [review] Patch v.1 r=LpSolit
gerv: please commit.
To ssh://email@example.com/bugzilla/bugzilla.git 42584a8..5c8594a master -> master
Sorry; I had three goes at checking this in today, but was stymied by bad networks (I think). Gerv