* Save cached initial sync blocks before getting head block
* Add better abstraction to get block
* Move unlock read to a better location
* Feedbacks
* Add head changed logging
* Harder hasBlock requirement
* Update beacon-chain/blockchain/service.go
Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>
* Update receive_attestation.go
* Don't process head if the block is unknown
* Use a helper method
* Fix test
Co-authored-by: Nishant Das <nishdas93@gmail.com>
Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>
Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>