Update ordering of related ppas on DSP page to use total karma

[Michael Nelson]

Currently the related PPAs listed on the DistributionSourcePackage page use the KarmaCache for sorting, but sort on a combination of KarmaCache attributes that are not included in the cache updating script. Hence, non are displayed.

Given some of the prior discussion on bug 280958, particularly Rob's comment:

https://bugs.edge.launchpad.net/soyuz/+bug/280958/comments/74

we'll instead sort by the creators total karma.

[Diogo Matsubara (matsubara)]

Fixed in devel r8842.

[Michael Nelson (michael.nelson)]

Fail :(

The user sb56637 (with 403 karma) copied the FF3.5 package from the Mozilla team into his/her own PPA at:

https://edge.launchpad.net/~sb56637/+archive/ppa

and is (currently) listed as the first PPA at:

https://edge.launchpad.net/ubuntu/+source/firefox-3.5

(followed by the Mozilla team PPA then Fabien's PPA). I assume this is because that package still has Fabien as the creator. So, Fabien's packages are appearing first (as they should with 80k karma), but we shouldn't be including these copies.

We need to update the query so copied packages are not included when finding the related packages. Although in other circumstances this would be ok (ie. security ppa).

Created bug 399152 to follow this up.