Like others, explain the situation clearly, but unlike others are suggesting, don't jump to the fork button. Instead, get on a call with them. In the end, you will have to decide if you want to keep accepting their work. Best to talk it through with a non-text medium, video is best, more than half of your communication is lost by not using it. Also, get over the "I might hurt their feelings" and think more like "I mi…
> don't jump to the fork button Doesn't PR refer to pull request? That means there is already a de facto fork: a repository from which the changes are supposed to be pulled into the upstream.
yes, but that is besides the point. Fork here is being used in the permanent sense, where you continue development and never open a PR