app/services/projects/unlink_fork_service.rb


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module Projects
  class UnlinkForkService < BaseService
    def execute
      return unless @project.forked?

      @project.forked_from_project.lfs_objects.find_each do |lfs_object|
        lfs_object.projects << @project
      end

      merge_requests = @project.forked_from_project.merge_requests.opened.from_project(@project)

      merge_requests.each do |mr|
        MergeRequests::CloseService.new(@project, @current_user).execute(mr)
      end

      @project.forked_project_link.destroy
    end
  end
end