File in multiple locations

Hey all, I'm new to Spark and Laravel, and trying to figure out where things are after installing Spark is making me scratch my head.

I'm trying to add a couple fields to the registration, but I see two files called 'register-common-form.blade.php' -- one in /vendor/laravel/spark/resources/views/auth/ and another in /resources/views/vendor/spark/auth

Why are there two, and which one should I be using?

Thanks!