Bug#56982: apt: multiple sources for one file always fetches the first one found

[debian-bugs@marc-haber.de]

Package: apt
Version: 0.3.16
Severity: wishlist

Hi!

My sources.list is like this:
deb ftp://ftp.rz.uni-karlsruhe.de/pub/linux/mirror.debian potato main contrib non-free
deb ftp://basis.globe.de/debian potato main contrib non-free
deb ftp://ftp.uni-stuttgart.de/pub/mirror/ftp.de.debian.org/pub/debian potato main contrib non-free

All three mirrors are available, but the first two are currently de-synced.
So I added ftp.uni-stuttgart.de which has a current archive but is much
slower than the first two.

When I use apt-get to install new software, apt pulls the package from ftp.
rz.uni-karlsruhe.de even if ftp.uni-stuttgart.de does have a newer package.
I'd like to have apt notice that and ask me which version of the file it
should install.

That way, one could have maximum performance for packages available on a
"near" server while only resorting to a server that is more far away when
that server has a later version.

Greetings
Marc

-- System Information
Debian Release: potato
Kernel Version: Linux leona 2.2.13 #1 Sat Nov 20 12:44:19 EST 1999 i586 unknown

Versions of the packages apt depends on:
ii  libc6          2.1.2-12       GNU C Library: Shared libraries and Timezone
ii  libstdc++2.10  2.95.2-5       The GNU stdc++ library