Major Breakage in Ubuntu Hardy AutoUpdate to qt 4.4

I'm trying to avoid entering a duplicate bug... but I have not been able to find it. so thought I would ask here first...

When I run the Auto-Updates in Ubuntu Hardy (backports enabled), it installs QT 4.4

QT 4.4 has a very serious bug in it's xml parser library. It is adding invalid DOCTYPE tags which is causing the xml files to become unreadable. I suspect that this affects many programs. But what I know for certain is that it breaks mscore.

There is a work-around fix for mscore that has been available since 2008 but has never been deployed.
see: https://bugs.launchpad.net/ubuntu/+source/mscore/+bug/234681

But I have not been able to locate a bug against qt -- where the actual problem is.

Meanwhile, auto-updates is causing Ubuntu Hardy systems that were working to become mysteriously broken.
This happened recently to a musician that I provide support for. I can not believe that there are only two musicians in the entire world who happen to use Ubuntu Hardy + MuseScore and that install automatic updates.

I don't know what the issue is with not getting this deployed, but my feeling is that if auto-updates breaks something then the problem ought to be dealt with in a timely fashion. It's been two years since the trivial fix was available for mscore, and yet in 2010 people's computers are still being broken.

In searching for qt bugs I did find a lot of activity in which qt 4.4.0 breaks PostgreSQL and apparently the fix is available in qt 4.4.1 I could not tell from the bug reports if it is the same issue or a different issue. But what I do see is that those bugs are also from 2008 and as far as I can tell qt 4.4.1 has not been deployed, why??