diff options
| -rw-r--r-- | modules/navigation/nav_map.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/modules/navigation/nav_map.cpp b/modules/navigation/nav_map.cpp index 8b7274d673..737ccaf3cd 100644 --- a/modules/navigation/nav_map.cpp +++ b/modules/navigation/nav_map.cpp @@ -1060,7 +1060,8 @@ void NavMap::sync() { } // Update the update ID. - map_update_id = (map_update_id + 1) % 9999999; + // Some code treats 0 as a failure case, so we avoid returning 0. + map_update_id = map_update_id % 9999999 + 1; } // Do we have modified obstacle positions? |