fix wrong field access in LoadConsensusParams

Closes #1766

state/store.go

@@ -4,9 +4,9 @@ import (
 	"fmt"
 
 	abci "github.com/tendermint/tendermint/abci/types"
-	"github.com/tendermint/tendermint/types"
 	cmn "github.com/tendermint/tendermint/libs/common"
 	dbm "github.com/tendermint/tendermint/libs/db"
+	"github.com/tendermint/tendermint/types"
 )
 
 //------------------------------------------------------------------------
@@ -175,7 +175,7 @@ func LoadValidators(db dbm.DB, height int64) (*types.ValidatorSet, error) {
 	if valInfo.ValidatorSet == nil {
 		valInfo2 := loadValidatorsInfo(db, valInfo.LastHeightChanged)
 		if valInfo2 == nil {
-			cmn.PanicSanity(fmt.Sprintf(`Couldn't find validators at height %d as
+			panic(fmt.Sprintf(`Couldn't find validators at height %d as
                         last changed from height %d`, valInfo.LastHeightChanged, height))
 		}
 		valInfo = valInfo2
@@ -239,11 +239,12 @@ func LoadConsensusParams(db dbm.DB, height int64) (types.ConsensusParams, error)
 	}
 
 	if paramsInfo.ConsensusParams == empty {
-		paramsInfo = loadConsensusParamsInfo(db, paramsInfo.LastHeightChanged)
-		if paramsInfo == nil {
-			cmn.PanicSanity(fmt.Sprintf(`Couldn't find consensus params at height %d as
+		paramsInfo2 := loadConsensusParamsInfo(db, paramsInfo.LastHeightChanged)
+		if paramsInfo2 == nil {
+			panic(fmt.Sprintf(`Couldn't find consensus params at height %d as
                         last changed from height %d`, paramsInfo.LastHeightChanged, height))
 		}
+		paramsInfo = paramsInfo2
 	}
 
 	return paramsInfo.ConsensusParams, nil