find_matches: don't create ridiculous accept paths

diff --git a/util/ng_find_matches.cpp b/util/ng_find_matches.cpp
index 9cbc955a21e553bc6b648d3bb31f948f9ce4650c..c406ee95253fe57afc84083269acf19fdae208b0 100644 (file)
--- a/util/ng_find_matches.cpp
+++ b/util/ng_find_matches.cpp
@@ -301,7 +301,7 @@ struct GraphCache {
                 vertex_reports_by_level[d][v].insert(rs.begin(), rs.end());
             }
 
-            if (edit_distance == 0) {
+            if (edit_distance == 0 || hamming) {
                 // if edit distance is 0, no predecessors will have reports
                 continue;
             }