In case it helps someone else, here's "workaround" steps to install the patched library from source. This fixed the bug for me in Ubuntu 16.04.
apt install libunique-dev wget https://github.com/GNOME/perl-Gtk2-Unique/archive/master.zip unzip master.zip cd perl-Gtk2-Unique-master perl Makefile.PL make make test make install
In case it helps someone else, here's "workaround" steps to install the patched library from source.
This fixed the bug for me in Ubuntu 16.04.
apt install libunique-dev /github. com/GNOME/ perl-Gtk2- Unique/ archive/ master. zip Unique- master
wget https:/
unzip master.zip
cd perl-Gtk2-
perl Makefile.PL
make
make test
make install