phab:T757 contains a "show details" link. The link triggers a login form, is that as it should be? The other links (explanations of terms) work, excl. the link to the author (good).
Thank you, good catch. That link points to a simple and static diff. Anonymous users should be able to access it. I have filed a bug upstream.
... and it has been fixed upstream! Those guys are damn fast. We will get the fix whenever we update, most probably in the next weeks, before the launch.