@Jean-Alexandre - Thanks for testing this update. The error that you see is actually from update-manager and was fixed in https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1773316.
@Jean-Alexandre - Thanks for testing this update. The error that you see is actually from update-manager and was fixed in https:/ /bugs.launchpad .net/ubuntu/ +source/ update- manager/ +bug/1773316.