Another very minor admin bug when creating a new group

[clay (Clay Heaton)]

very minor bug alert

1. Go into Admin
2. Click Groups
3. Click New
4. Change your mind. You don’t really want a new group. Click Delete.
5. The following pops up. Clicking “Yes” does nothing at all.

[tgxworld (Alan Tan)]

The problem might not be that minor. The routes after clicking new is http://localhost:3000/admin/groups/custom/undefined which isn’t right.

[getabetterpic (Daniel Smith)]

I’ve submitted a PR to fix this. Fix bug when adding new custom group by getabetterpic · Pull Request #3782 · discourse/discourse · GitHub