Я форкнул репозиторий Discourse на GitHub. Как заменить его на существующую установку Discourse на моём сайте?

Regrettably, I am diligently striving to resolve the issue; I have shared the fault in this matter as well, yet I have not yet found a solution. Overriding user_guardian.rb in a plugin (no fork necessary!) - #29 by pfaffman