Fix for disco (but could be used for bionic too) is at:
https://code.launchpad.net/~canonical-desktop-team/ubuntu/+source/libnotify/+git/libnotify/+ref/ubuntu/master
Fix for disco (but could be used for bionic too) is at:
https:/ /code.launchpad .net/~canonical -desktop- team/ubuntu/ +source/ libnotify/ +git/libnotify/ +ref/ubuntu/ master