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fix prevote nil condition

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This commit is contained in:
William Banfield
2021-09-23 18:30:10 -04:00
parent a1ea25d005
commit c00c2b4738
1 changed files with 7 additions and 0 deletions
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7
internal/consensus/state.go
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@@ -1319,6 +1319,13 @@ func (cs *State) defaultDoPrevote(height int64, round int32) {
return
}
// If a block is locked and it does not match the proposal, prevote nil.
if cs.LockedBlock != nil && !cs.LockedBlock.HashesTo(cs.ProposalBlock.Hash()) {
logger.Debug("prevote step; already locked on a block that does not match proposal; prevoting nil")
cs.signAddVote(tmproto.PrevoteType, nil, types.PartSetHeader{})
return
}
// Prevote cs.ProposalBlock
// NOTE: the proposal signature is validated when it is received,
// and the proposal block parts are validated as they are received (against the merkle hash in the proposal)