Hmm. If you run `for i in objects/pack/*.idx; do echo "==> $i"; git show-index <$i | cut -d' ' -f2 | uniq -dc; done` in `rcarmo/core-plot.git` you see lots of duplicates. But I haven't found any in other repositories. And all of those packs are several years old. Why in the world didn't they get reaped when we moved the objects to the network? And did actual git-core produce the packs that the client sent us, or was it maybe a buggy alternate implementation?