Support copying 8192 blocks at EIP-2935 transition

[petertdavies]

At the fork transition, EIP-2935 requires the last 8192 block hashes to be written to the history storage address. Since we only store the last 256 blocks we are unable to support this.

[SamWilsn]

Do you have an idea of how you want to solve this? I was thinking maybe modifying the preceding fork(s) to store more blocks?

[gurukamath]

Do you have an idea of how you want to solve this? I was thinking maybe modifying the preceding fork(s) to store more blocks?

Based on the latest discussions on this EIP, I believe we won't need to refill the history window. We just let the ring buffer fill organically as the blocks are processed. Will keep an eye on this space.