Comment 7 for bug 1558823

I don't think 1561033 is a duplicate; the new key and signatures are
working on ddebs, which was my primary goal with this bug report, and
arges's bug includes error messages I've never seen before:

   Writing more data than expected (3453598 > 3453008)

I couldn't reproduce his bug on 14.04 LTS but I kept getting hash-sum
mismatches:

W: Failed to fetch http://ddebs.ubuntu.com/dists/trusty/main/binary-amd64/Packages Hash Sum mismatch

W: Failed to fetch http://ddebs.ubuntu.com/dists/trusty/universe/binary-amd64/Packages Hash Sum mismatch

W: Failed to fetch http://ddebs.ubuntu.com/dists/trusty/multiverse/binary-amd64/Packages Hash Sum mismatch

W: Failed to fetch http://ddebs.ubuntu.com/dists/trusty/main/binary-i386/Packages Hash Sum mismatch

W: Failed to fetch http://ddebs.ubuntu.com/dists/trusty/universe/binary-i386/Packages Hash Sum mismatch

W: Failed to fetch http://ddebs.ubuntu.com/dists/trusty/multiverse/binary-i386/Packages Hash Sum mismatch

I wonder if my hashes don't match because they aren't the expected
lengths...

Anyway I think un-dup is the right approach.