Comment 9 for bug 359810

Since the package system is binary package based, changing apport to understand source packages is not trivial. If a source package builds several different binaries, against which package should it report the bug? If there are several, we could either collect information about all of them and invent a new syntax for Packages:/Dependencies:, or do not collect any package related information and add some heuristics for running binary package hooks.

Indeed it is unfortunate that Launchpad encourages people to file bugs against source packages (you can specify binary packages as well, but it's not pointed out very well).