Merge #14085: index: Fix for indexers skipping genesis block.
Summary:
PR14085 backport https://github.com/bitcoin/bitcoin/pull/14085/files
ed12d5df1ba52b5ef3dd3799de26bb5e1d3fc654 index: Fix for indexers skipping genesis block. (Jim Posen)
Pull request description:
This fixes a bug where indexers would skip processing of the genesis block. Preserves the current behavior of omitting genesis block transaction from the index.
Backporter note: indeed this changes nothing about current behaviour, it
just prepares for BIP157 filters that want to index the genesis.
Test Plan: make check
Reviewers: deadalnix, jasonbcox, #bitcoin_abc, Fabien
Reviewed By: deadalnix, #bitcoin_abc, Fabien
Subscribers: Fabien
Maniphest Tasks: T630
Differential Revision: https://reviews.bitcoinabc.org/D3310