I can reproduce this as well. It started when I upgraded from Xubuntu 18.04 to 19.04.
$ dpkg-query --show thunar libexo-2-0 libexo-2-0:amd64 0.12.4-1 thunar 1.8.4-1ubuntu1
I can reproduce this as well. It started when I upgraded from Xubuntu 18.04 to 19.04.
$ dpkg-query --show thunar libexo-2-0
libexo-2-0:amd64 0.12.4-1
thunar 1.8.4-1ubuntu1