Bug#450510: "HASH SUM MISMATCH" errors in apt, versions > 0.7.6

[Uwe Bugla <uwe.bugla@gmx.de>]

Package: apt
Version: all versions > 0.7.6
Errors: HASH SUM MISMATCH errors

Hello everybody,

(same message as yesterday, ccing all relevant maintainers of apt, apt-utils, 
aptitude, and synaptic this time)

using Debian Sid I stumble over lots of HASH SUM MISMATCHES in connection with 
apt versions > 0.7.6.

That concerns only self-built Debian packages that I host locally.
(call them unofficial ones if you may wish).

Within version 0.7.6 or earlier this error does not appear at all.

Can someone reading that please:

a. reproduce the error?

b. fix that bug?

Just take a self-built Debian package which is NOT part of any official distro 
and host it on a local server of your personal choice under f. ex.
var/www/apache2-default/mydebian/pool/main/*/(appname)/(app).

Imply the self-built packages' path to its repository in etc/apt/sources.list
(f. ex.: deb http://192.168.0.1/apache2-default/mydebian/ sid main non-free)

on the server and at least one workstation.

Then try to install the package using synaptic, kpackage or apt-get install...

Then you should be able to reproduce the error on your own:
The relevant package will _hang_ in directory /var/cache/apt/archives/partial.
It will refuse to get installed at all.

That can't be a real solution, can it?

Thanks

Uwe