Everything works with this:
let g:rspec_command = "Dispatch rspec {spec}"
When there is an error, I get the quick fix window, if not, then not.
But if I add spring ...
let g:rspec_command = "Dispatch spring rspec {spec}"
... I always get the quick fix window and the first line is focused (which says || Run options: include {:focus=>true} in my case, because I have set Spring.quiet = true)
I'm using rspec 3.5.0.beta1 and Rails 5.0.0.beta2, so maybe that has to do something with it? How can we debug this further?