This one's a bit tricky to test, because the UI automatically hides your own cross-recommendations (and anything you've played, wishlisted, or unwishlisted).
So, to see the effect, you first have to create two sandboxed users, each of whom makes an explicit cross-rec to a game with no cross-recs. Each one will see the other's cross-recs. Before the PR, logged out users would see both cross-recs, but after this PR, they see neither.
This one's a bit tricky to test, because the UI automatically hides your own cross-recommendations (and anything you've played, wishlisted, or unwishlisted).
So, to see the effect, you first have to create two sandboxed users, each of whom makes an explicit cross-rec to a game with no cross-recs. Each one will see the other's cross-recs. Before the PR, logged out users would see both cross-recs, but after this PR, they see neither.