Wow great catch!
The "to_not" was left over from when it used to say `to_not have_text bob.name` but then I added a flash message to say "You are no longer following Bob`. The reason that this spec passed is there wasn't a period in the flash message (like there is in the spec).

I added the period and changed `to_not` to `to` and all seems to be in order now. Thanks for finding that!