post-genesis transition verkle branch fails to join after transition

[gballet]

I have been able to join a testnet transitioning at genesis if the node joins before the transition. Otherwise, it will trigger the transition at genesis and fail to join the testnet.

This has to be caused by the current timestamp being passed instead of the genesis block timestamp, but since this image is only for a testnet whose sole purpose is to demonstrate the overlay method, it's not a show stopper until the PR is merged back into kaustinen-with-shapella.