Mandatory policies for new users are breaking the OAuth process in the mobile app

The OAuth process launched by the app does not complete (the user is able to log in but it is not redirected back to the app) when new policies requiring agreement are added to the site. This could also happen the first time they access to the site if there is a mandatory license.

I've reproduced this with new users but I think it would happen the same for existing policies when a new mandatory policy is added to the site.

There is a more detailed description here: MOBILE-4078