And I don't think that the bug https://bugs.launchpad.net/ubuntu/+source/apt/+bug/307798 where I described the situation from the comment above is the duplicate of this particular problem.
And I don't think that the bug https:/ /bugs.launchpad .net/ubuntu/ +source/ apt/+bug/ 307798 where I described the situation from the comment above is the duplicate of this particular problem.