This works fine for me. Are you completely sure that 1> you pushed the changed config to the right place 2> you reloaded your server?
One thing I do is go to the admin UI and check for the collection core) and bring up the schema file just to be sure that I’m using the schema I think I am. I’d also check the admin/analysis page to see what that shows, sometimes I can get hints there. And I’m assuming you’ve completely re-indexed your data, although for query parsing that shouldn’t be relevant. Best, Erick