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Avoid underflow in voluntary exits

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Justin 2019-03-19 12:23:17 +00:00 committed by GitHub
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specs/core/0_beacon-chain.md
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@ -2472,6 +2472,7 @@ def process_voluntary_exit(state: BeaconState, exit: VoluntaryExit) -> None:
# Exits must specify an epoch when they become valid; they are not valid before then
assert get_current_epoch(state) >= exit.epoch
# Must have been in the validator set long enough
assert validator.activation_epoch != FAR_FUTURE_EPOCH
assert get_current_epoch(state) - validator.activation_epoch >= PERSISTENT_COMMITTEE_PERIOD
# Verify signature
assert bls_verify(