sealing pipeline: Only set pc commd when deals are present

storage/pipeline/precommit_batch_test.go

@@ -4,7 +4,6 @@ package sealing_test
 import (
 	"bytes"
 	"context"
-	"github.com/filecoin-project/go-state-types/network"
 	"sort"
 	"sync"
 	"testing"
@@ -17,6 +16,7 @@ import (
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/big"
 	minertypes "github.com/filecoin-project/go-state-types/builtin/v9/miner"
+	"github.com/filecoin-project/go-state-types/network"
 	miner6 "github.com/filecoin-project/specs-actors/v6/actors/builtin/miner"
 
 	"github.com/filecoin-project/lotus/api"

storage/pipeline/states_sealing.go

@@ -366,8 +366,10 @@ func (m *Sealing) preCommitInfo(ctx statemachine.Context, sector SectorInfo) (*m
 		SealedCID:     *sector.CommR,
 		SealRandEpoch: sector.TicketEpoch,
 		DealIDs:       sector.dealIDs(),
+	}
 
-		UnsealedCid: sector.CommD,
+	if sector.hasDeals() {
+		params.UnsealedCid = sector.CommD
 	}
 
 	collateral, err := m.Api.StateMinerPreCommitDepositForPower(ctx.Context(), m.maddr, *params, ts.Key())