(bug): Corrupted channels which appear as "@" and link to minds.com/undefined appear in subscriber lists.

Summary

Reported by a user in H&S: https://www.minds.com/newsfeed/939716958605750272

Steps to reproduce

1. Visit https://www.minds.com/ledocool/subscribers
2. Scroll down until you see the two channels with "@" as the username

Platform information

Chrome/Win10.

What is the current bug behavior?

Corrupted channels which appear as "@" and link to minds.com/undefined appear in subscriber lists.

What is the expected correct behavior?

Corrupted channels should not appear in subscriber lists.

Relevant logs and/or screenshots

Possible fixes

(If you can, link to the line of code that might be responsible for the problem)