Bug#160870: apt: Apt source redirection causes auto-.gz detection breakage.

[Scott Robinson <scott@tranzoa.net>]

Package: apt
Version: 0.5.4
Severity: normal

If a Packages or Sources file request is redirected (302 Found, in my example)
to a 404, the 404 isn't detected and followup requests for
[Packages|Sources][.gz|.bz2] aren't made.

Example:

deb http://gluck.debian.org/%7Eandreas/debian wine main
deb-src http://gluck.debian.org/%7Eandreas/debian wine main

-- System Information
Debian Release: testing/unstable
Kernel Version: Linux tara 2.4.19 #1 Sat Sep 7 20:36:05 PDT 2002 i686 unknown unknown GNU/Linux

Versions of the packages apt depends on:
ii  libc6          2.2.5-6        GNU C Library: Shared libraries and Timezone
ii  libstdc++2.10- 2.95.4-11      The GNU stdc++ library