Personal Git repository transfer privacy check is stricter than normal privacy rules

GitRepository._checkPersonalPrivateOwnership rejects a repository transfer to a person or public team whenever the repository is private. But PersonalGitNamespace.getAllowedInformationTypes permits people and non-private teams to use FREE_INFORMATION_TYPES, which includes the private PRIVATESECURITY and USERDATA types. This means it's possible for someone to create a personal private Git repository, make it public, transfer it, then make it private again, but it's not possible to transfer it directly.