Clicking on a link to a group you are not a member of doesn't work

[tibetsprague]

If the group is not visible to you it should show a 404. If it is visible to you (e.g. if its public) then it should take you to the group about page where you can join if its an Open group, or request to join if its Restricted. I can't remember if this used to work on mobile or not. Right now it brings me to the Feed page of the last group I was in and just hangs, not loading anything