Blocks zero and one become inaccessible after the first root is set

[steveluscher]

Problem

Starting with db9826c the first two blocks become inaccessible after we set the first root. 32 confirmations after starting the test validator, solana first-available-block returns 2.

@t-nelson confirmed this by querying for blocks 0 and 1 in a loop after starting up the test validator (logs).

After ~13s, those blocks become inaccessible.

Error: RPC response error -32001: Block 1 cleaned up, does not exist on node. First available block: 2
Error: RPC response error -32001: Block 0 cleaned up, does not exist on node. First available block: 2

Proposed Solution

@t-nelson suggested that genesis should be implicitly rooted (discord); that this code needs to consider querying genesis (link).