It has nothing at all to do with libnotify, and I have no idea what the supposed behavior for this should be. The "synchronous" hint given is entirely private to Canonical's Notify-OSD. The standard way to update a notification (notify_notification_update() then resend the notification) isn't supported by notify-send.
** Package changed: libnotify (Ubuntu) => notify-osd (Ubuntu) -- notification summary doesn't change for synchronous messages https://bugs.launchpad.net/bugs/404658 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs