AUTHORVIEWCAPABILITY in mail templates

[rowlap]

I'm staring at the code but can't quite figure out what AUTHORVIEWCAPABILITY provides to the bundled mail templates.

As it's not part of the inline docs, can I ask here what's the intended purpose?

hotcrp/src/pages/p_mail.php

Line 186 in 216d750

<dt><code>%URL%</code></dt>

[kohler]

AUTHORVIEWCAPABILITY is a sharing token that allows people not logged in to the site to view a particular paper as an author would.