// KnightPoint Systems, LLC : http://www.knightpoint.com/
// Submitted by Roy Keene <******@****.***>
knightpoint.systems

// KoobinEvent, SL: https://www.koobin.com
// Submitted by Iván Oliva <ivan.oliva@koobin.com>
koobin.events

// KUROKU LTD : https://kuroku.ltd/
// Submitted by DisposaBoy <******@****.***>
oya.to

// Katholieke Universiteit Leuven: https://www.kuleuven.be

      LOG(WARNING) << mutation_warning;
      session->graph->sessions[session].clear();
    }

    const auto num_nodes = graph.num_node_ids();
    if (session->last_num_graph_nodes < num_nodes) {
      // TODO(nolivia): check this on a subset of the graph instead of all of
      // it.
      status->status = graph::ValidateGraphHasNoCycle(session->graph->graph);
      if (!status->status.ok()) {
        session->graph->mu.unlock();