apt-rdepends does not follow all specified depends types recursively

Binary package hint: apt-rdepends

OS: 8.10, apt-rdepends 1.3.0-1.1

E.g. command "apt-rdepends --follow=Depends,PreDepends,Recommends --show=Depends,PreDepends,Recommends xubuntu-desktop" does not show aforementioned types of dependencies of xubuntu-desktop recursively (but only 1st level dependencies).

I think the problem is due to the fact that apt-rdepends follows the AptPkg enumerator internal values (1,2 3, etc, see the AptPkg man page), not their value.
For instance the following command will correctly show Depends, PreDepends and Recommends:

apt-rdepends --follow=1,2,4 --show=1,2,4 xubuntu-desktop

This needs forwarding to Debian.

Good to know. I hope the numerical values continue to work and also text values later. The values of the constants are not specified in either command's man page.

Problem still exists on Ubuntu 12.04 (Precise Pangolin) with 1.3.0-2 version.