Comment 5 for bug 1781176

I tested 1.1ubuntu1.18.04.4 and found the problem not fixed here. The problem was fixed in u-u 1.3 but changes in 1.4 made the original fix incomplete.
The side-effect of is_pkgname_in_blacklist() is still removed, but assumptions broke at the place where the function is called and as a result the content of u-u's email is the same, listing blacklisted packages like they would have allowed origins.

I submitted a fix for the current code in https://github.com/mvo5/unattended-upgrades/pull/137.