I try to change the conditions to tally.Votes < snap.ValSet.Size()/3 or tally.Votes < 0，but it do not work well

[yangmiok]

if tally := snap.Tally[candidate]; tally.Votes < snap.ValSet.Size()/2 {
		if tally.Authorize {
			logger.Info("BFT: reached majority to add validator")
			snap.ValSet.AddValidator(candidate)
		} else {
			logger.Info("BFT: reached majority to remove validator")
			snap.ValSet.RemoveValidator(candidate)

			// Discard any previous votes the deauthorized validator cast
			for i := 0; i < len(snap.Votes); i++ {
				if snap.Votes[i].Validator == candidate {
					// Uncast the vote from the cached tally
					snap.uncast(snap.Votes[i].Address, snap.Votes[i].Authorize)

					// Uncast the vote from the chronological list
					snap.Votes = append(snap.Votes[:i], snap.Votes[i+1:]...)

					i--
				}
			}
		}
		// Discard any previous votes around the just changed account
		for i := 0; i < len(snap.Votes); i++ {
			if snap.Votes[i].Address == candidate {
				snap.Votes = append(snap.Votes[:i], snap.Votes[i+1:]...)
				i--
			}
		}
		delete(snap.Tally, candidate)
	}