This problem was somehow introduced in the Ubuntu packaging since the Debian package installs into the correct directories (verified by opening the respective *.deb packages with Archive Manager). I ran a diff of the two *.debian.tar.xz files and nothing jumped out at me. I'm afraid that I don't have the time to look at the problem in more depth. Hopefully what I did have time for helps get someone else going in the right direction!
This problem was somehow introduced in the Ubuntu packaging since the Debian package installs into the correct directories (verified by opening the respective *.deb packages with Archive Manager). I ran a diff of the two *.debian.tar.xz files and nothing jumped out at me. I'm afraid that I don't have the time to look at the problem in more depth. Hopefully what I did have time for helps get someone else going in the right direction!