processBlockByRootChunk unconditionally passes every fetched block through chain.onBlock() (the full state transition function), even when the block is already known to fork choice (the checkpoint sync anchor). The anchor block doesn't need STF re-processing — it's already the trust root.
processBlockByRootChunkunconditionally passes every fetched block throughchain.onBlock()(the full state transition function), even when the block is already known to fork choice (the checkpoint sync anchor). The anchor block doesn't need STF re-processing — it's already the trust root.