title: I want to use universal link in my app for two different XCode schemes
body: <p>My project has one target with two schemes. One for production and one for staging.
  Each scheme has a different app ID.
  I have two websites, one for production and one for staging.
  I've supplied two separate apple-app-site-association files for each domain with unique content, and I added each one of them to my websites.
  In my associated domains I added both domains.
  When I tap a universal link to my production app, it works, and when I tap a universal link to my staging app it doesn't.
  Why??</p>