I'm finding that pushes do go through eventually, this is probably grossly irresponsible, so I don't recommend its use, but I remembered I had this old alias to "push harder" in my ~/.gitconfig:

    [alias]
    thrust = "!f() { until git push $@; do sleep 0.5; done; }; f"

I've done a few pushes so far, and found that it's going through in <10 tries or so.