SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. Add IPv6 route with metric 0 to nm-connection (i.e. via text editor) 2. Open the connection in plasma-nm 3. Observe no such route displayed 4. Close the window and get warned about changes OBSERVED RESULT Route is dropped from nm-connection EXPECTED RESULT Route is not silently lost SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: 5.x (available in About System) KDE Plasma Version: 5.x KDE Frameworks Version: 5.x Qt Version: 5.x ADDITIONAL INFORMATION Cause: https://invent.kde.org/frameworks/networkmanager-qt/-/blob/master/src/settings/ipv6setting.cpp#L454