Installation of ia32-sun-java6-bin fails in Karmic

I think this is a dup of bug #485135 but for some reason the person who filed that bug later closed it as "Invalid"; it's definitely _not_ invalid. This is a real bug; maybe the ia86-sun-java6-bin package needs to be updated since a newer sun-java6 release was made for the 64bit packages? Something like that.

On my fully up-to-date 9.10 64bit system with sun-java6 installed, when I try to run:

~$ sudo aptitude install ia32-sun-java6-bin

I get this failure:

Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
The following packages are BROKEN:
  ia32-sun-java6-bin
The following NEW packages will be installed:
  lib32nss-mdns{a}
0 packages upgraded, 2 newly installed, 0 to remove and 1 not upgraded.
Need to get 29.1MB of archives. After unpacking 86.7MB will be used.
The following packages have unmet dependencies:
  ia32-sun-java6-bin: Depends: sun-java6-jre (= 6-15-1) but 6-16-0ubuntu1.9.04 is installed.

It does offer to solve this for me by downgrading my sun-java6 packages:

The following actions will resolve these dependencies:

Remove the following packages:
sun-java6-fonts
sun-java6-jdk

Downgrade the following packages:
sun-java6-bin [6-16-0ubuntu1.9.04 (now) -> 6-15-1 (karmic)]
sun-java6-jre [6-16-0ubuntu1.9.04 (now) -> 6-15-1 (karmic)]

Score is 188

but this definitely should not be necessary.

ProblemType: Bug
Architecture: amd64
Date: Wed Dec 2 14:40:42 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: ia32-sun-java6-bin (not installed)
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=C
ProcVersionSignature: Ubuntu 2.6.31-15.50-generic
SourcePackage: sun-java6
Uname: Linux 2.6.31-15-generic x86_64