"HASH SUM MISMATCH" in apt version 0.7.8

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

Hello,

using Debian Sid I stumble over lots of HASH SUM MISMATCHES in connection with 
apt version 0.7.8.

Within version 0.7.6 this error does not appear at all.

Can someone reading that please:

a. reproduce the error?

b. fix that bug?

Thanks

Uwe