Fork it to your account

Unfortunately, I cannot help with the why, as the commit message is not helpful, but it looks like this is intentional.

```
    def test_hide_fork_link_for_repos_targeting_person(self):
        person = self.factory.makePerson()
        another_person = self.factory.makePerson()
        repository = self.factory.makeGitRepository(target=person)
        browser = self.getViewBrowser(
            repository, "+index", user=another_person
        )
        self.assertDoesntContainForkLink(
            browser,
            repository,
            [
                "Fork it to your account",
                "Or click here to fork it to your account.",
            ],
        )
```

Hey! Is this still a problem?

Well, I seems nobody remembers what the rational is.