And waits for them. That's pointless.
replaced_parts = checkPartChecksumsAndCommit(transaction, part);
            /** If a quorum is tracked for this part, you must update it.
              * If you do not have time, in case of losing the session, when you restart the server - see the `ReplicatedMergeTreeRestartingThread::updateQuorumIfWeHavePart` method.
              */
            if (quorum)
            {
                
                if (zookeeper->exists(fs::path(zookeeper_path) / "quorum" / "parallel" / part_name))
                    updateQuorum(part_name, true);
                else if (zookeeper->exists(fs::path(zookeeper_path) / "quorum" / "status"))
                    updateQuorum(part_name, false);
            }
            
            if (part_info.level != 0 || part_info.mutation != 0)
            {
                Strings quorum_parts = zookeeper->getChildren(fs::path(zookeeper_path) / "quorum" / "parallel");
                for (const String & quorum_part : quorum_parts)
                {
                    auto quorum_part_info = MergeTreePartInfo::fromPartName(quorum_part, format_version);
                    if (part_info.contains(quorum_part_info))
                        updateQuorum(quorum_part, true);
                }
            }
            merge_selecting_task->schedule();
            for (const auto & replaced_part : replaced_parts)
            {
                LOG_DEBUG(log, "Part {} is rendered obsolete by fetching part {}", replaced_part->name, part_name);
                ProfileEvents::increment(ProfileEvents::ObsoleteReplicatedParts);
            }
            write_part_log({});