Oh crap! I had this in an open tab and I never hit submit! That's why we still haven't moved here. It's all my fault. I'm terrible!

I started to change this, but then I realized that I had stolen this code from ``otter.rest.groups.create_new_scaling_group``, which does the same thing. I agree that it'd be better to move them into the same codepath (so we don't get weird and out of sync with this change), but I think it's outside the scope of this particularly branch for that refactor (though I'm certainly happy to do the refactor).