Patch Set 1: No score

This gets us a little closer to working, but there seems to be another case we haven't thought about:

Delta compression using up to 16 threads.
Compressing objects: 100% (71/71), done.
Writing objects: 100% (152/152), 20.66 KiB, done.
Total 152 (delta 71), reused 67 (delta 30)
error: unpack failed: error Missing blob b423bcb4ace7f2be1aca49e45c99b32d82333d1a
To ssh://localhost:29418/gerrit.git
 ! [remote rejected] HEAD -> refs/for/master (n/a (unpacker error))
error: failed to push some refs to 'ssh://localhost:29418/gerrit.git'