ubuntu-bug / apport user-interface mixed up

I ran "ubuntu-bug" (without package name) to file a "general" bug. A small window opened, where I could use radio buttons to select one of of 8 options ("Other problem", "ubuntu-release-upgrader", ... , "Display (X.org)"). I selected "Other problem" and I got a small window with the question "What display problem do you observe?" and eight options to choose from ("Other display-related problem", "Fonts are the wrong size", ... , "I don't know"). I quit and restarted "ubuntu-bug". This time, I chose "Display (X.org)" and got the message "You need to specify a package or a PID. See --help for more information." I seems that something gets mixed up. I tried many times and every time when I do the same, I observe exactly the same behaviour. Thus, the bug is perfectly reproducible.

I tried to report the bug using "ubuntu-bug apport" but this seems not to work. Chrome opens a new tab with the launchpad website but it did not find the bug report there. Therefore, I ran "ubuntu-bug apport --save apport-apport.txt" and I will attach the file created by ubuntu-bug / apport.