692
694
# These nodes are common ancestors of all unique nodes
693
695
common_to_all_unique_nodes = self._find_nodes_common_to_all_unique(
694
696
unique_tip_searchers, all_unique_searcher, newly_seen_unique,
696
698
step_all_unique_counter = ((step_all_unique_counter + 1)
697
699
% STEP_UNIQUE_SEARCHER_EVERY)