packages not completely removed

[dennyhalim.com]

Binary package hint: apt

just today i try to remove few packages and see that aptitude and also apt-get fail to remove what i want to remove:

:~$ sudo aptitude purge gnome-core
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
Building tag database... Done
The following packages are unused and will be REMOVED:
  eog gedit gedit-common libgnomevfs2-bin
The following packages will be REMOVED:
  gnome-core{p}
0 packages upgraded, 0 newly installed, 5 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 22.3MB will be freed.
Do you want to continue? [Y/n/?]

after aptitude completed, i startx and still enter into gnome session.
a lot of gnome-core stuffs still there.
(it was installed from server cd and only gnome-core was installed. not the whole gnome)

same thing with xfce4:
:~$ sudo aptitude purge xfce4
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
Building tag database... Done
The following packages are unused and will be REMOVED:
  orage xfce4-mixer xfce4-mixer-alsa xfonts-100dpi xfonts-75dpi
  xfonts-scalable xfprint4 xorg
The following packages will be REMOVED:
  xfce4{p}
0 packages upgraded, 0 newly installed, 9 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 18.5MB will be freed.
Do you want to continue? [Y/n/?]

after completed, there're still lots of xfce4 stuffs left behind.

[dennyhalim.com (mail2dny)]

also tried re-install and then remove again. still same problem.

tried using all these:
apt-get remove
apt-get autoremove
apt-get purge
aptitude remove
aptitude purge

all with same result

[Vojtěch Trefný (vojtech.trefny)]

Thanks for reporting, but this is not a real bug, so I'm converting this to question...

[dennyhalim.com (mail2dny)]

i think it's a bug.

i think this could be the same bug:
https://bugs.launchpad.net/ubuntu/+source/apt/+bug/187199
https://bugs.launchpad.net/ubuntu/+source/apt/+bug/131380