fix typo

lib/gitlab/import_export/relation_factory.rb

@@ -86,7 +86,7 @@ module Gitlab
       end
       def has_author?(old_author_id)
-        admin_user? && !@members_mapper.map.keys.include?(old_author_id)
+        admin_user? && @members_mapper.map.keys.include?(old_author_id)
       end
       def missing_author_note(updated_at, author_name)