fix leader crosslink issue to not include old cross link in the proposing block

consensus/view_change_construct.go

@@ -464,7 +464,7 @@ func (vc *viewChange) InitPayload(
 	if !inited {
 		viewIDBytes := make([]byte, 8)
 		binary.LittleEndian.PutUint64(viewIDBytes, viewID)
-		vc.getLogger().Info().Uint64("viewID", viewID).Uint64("blockNum", blockNum).Msg("[InitPayload] add my M3 (ViewID) type messaage")
+		vc.getLogger().Info().Uint64("viewID", viewID).Uint64("blockNum", blockNum).Msg("[InitPayload] add my M3 (ViewID) type message")
 		for _, key := range privKeys {
 			if _, ok := vc.viewIDBitmap[viewID]; !ok {
 				viewIDBitmap := bls_cosi.NewMask(members)

node/node_newblock.go

@@ -231,6 +231,9 @@ func (node *Node) ProposeNewBlock(commitSigs chan []byte) (*types.Block, error)
 		invalidToDelete := []types.CrossLink{}
 		if err == nil {
 			for _, pending := range allPending {
+				if pending.EpochF.Int64() < currentHeader.Epoch().Int64()-3 {
+					continue
+				}
 				// ReadCrossLink beacon chain usage.
 				exist, err := node.Blockchain().ReadCrossLink(pending.ShardID(), pending.BlockNum())
 				if err == nil || exist != nil {