Comment 5 for bug 1775660

I performed an upgrade of Ubuntu 17.10 to Ubuntu 18.04 and ran "dpkg -l | grep '^rc'" after purging packages and kind of captured the difference in that with -proposed no packages were left in an rc state.

 $ cat artful-nopurge.txt
rc gnome-orca 3.28.0-3ubuntu1 all Scriptable screen reader - transitional package
rc libunistring0:amd64 0.9.3-5.2ubuntu1 amd64 Unicode string library for C
rc linux-image-4.13.0-16-generic 4.13.0-16.19 amd64 Linux kernel image for version 4.13.0 on 64 bit x86 SMP
rc linux-image-4.13.0-21-generic 4.13.0-21.24 amd64 Linux kernel image for version 4.13.0 on 64 bit x86 SMP
rc linux-image-4.13.0-41-generic 4.13.0-41.46 amd64 Linux kernel image for version 4.13.0 on 64 bit x86 SMP
rc linux-image-4.13.0-43-generic 4.13.0-43.48 amd64 Linux kernel image for version 4.13.0 on 64 bit x86 SMP
rc linux-image-extra-4.13.0-16-generic 4.13.0-16.19 amd64 Linux kernel extra modules for version 4.13.0 on 64 bit x86 SMP
rc linux-image-extra-4.13.0-21-generic 4.13.0-21.24 amd64 Linux kernel extra modules for version 4.13.0 on 64 bit x86 SMP
rc linux-image-extra-4.13.0-41-generic 4.13.0-41.46 amd64 Linux kernel extra modules for version 4.13.0 on 64 bit x86 SMP
rc linux-image-extra-4.13.0-43-generic 4.13.0-43.48 amd64 Linux kernel extra modules for version 4.13.0 on 64 bit x86 SMP
rc python 2.7.15~rc1-1 amd64 interactive high-level object-oriented language (default version)
rc python2.7-minimal 2.7.15~rc1-1 amd64 Minimal subset of the Python language (version 2.7)
rc snapd-login-service 1.23-0ubuntu1 amd64 Daemon to allow non-root access to snapd

bdmurray@clean-artful-amd64:~$ grep "upgrader version" /var/log/dist-upgrade/main.log
2018-07-11 14:09:34,978 INFO release-upgrader version '18.04.20' started
bdmurray@clean-artful-amd64:~$ dpkg -l | grep "^rc"
bdmurray@clean-artful-amd64:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04