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Update 0_fork-choice.md

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terence tsao 2019-11-25 10:37:06 -08:00 committed by Hsiao-Wei Wang
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specs/core/0_fork-choice.md
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@ -251,8 +251,6 @@ def on_attestation(store: Store, attestation: Attestation) -> None:
# Use GENESIS_EPOCH for previous when genesis to avoid underflow
previous_epoch = current_epoch - 1 if current_epoch > GENESIS_EPOCH else GENESIS_EPOCH
assert target.epoch in [current_epoch, previous_epoch]
# Cannot calculate the current shuffling if have not seen the target
assert target.root in store.blocks
# Attestations target be for a known block. If target block is unknown, delay consideration until the block is found
assert target.root in store.blocks