Comment 7 for bug 253119

update-manager in lucid will now try to download a changelog that is similar named to the .deb (it just substitutes .changelog for .deb). This is used e.g. in
http://packages.medibuntu.org/pool/free/a/aacgain/

If launchpad supports this and just extracts the plaintext .changelog file to the pool/ dir, then u-m will display them correctly.