This sounds like a reasonable way for forking though. I mean what is open source for if you can't go and and implement your own features if you so desire. Sounds to me like both sides are at fault.
I would gladly switch back once Gogs is no longer vulnerable to the Bus-Problem.
I evaluated them both again a month ago and found that Gogs is as active or more active than Gitea by actual features developed, they just have less frequent releases.
It's not like other people are mentioning in the thread that "some contributions would not get added" - but rather the fact that he often has really long periods of absence: just take a look at the contributions on his profile https://github.com/Unknwon
And of course, I'm not putting the blame on him - all of us need breaks from time to time - but during these periods where he can't work on the project, the project is essentially brought to a halt, seeing as there is no one else in the community of contributors who is able to merge pull requests - even if they are critical.