change initial version to 0

store/v2/commitment/store.go

@@ -202,7 +202,7 @@ func (c *CommitStore) Commit(version uint64) (*proof.CommitInfo, error) {
 		// will be larger than the RMS's metadata, when the block is replayed, we
 		// should avoid committing that iavl store again.
 		var commitID proof.CommitID
-		if tree.GetLatestVersion() >= version {
+		if tree.GetLatestVersion() >= version && version > 0 {
 			commitID.Version = version
 			commitID.Hash = tree.Hash()
 		} else {

store/v2/root/store.go

@@ -72,7 +72,7 @@ func New(
 ) (store.RootStore, error) {
 	return &Store{
 		logger:           logger.With("module", "root_store"),
-		initialVersion:   1,
+		initialVersion:   0,
 		stateStorage:     ss,
 		stateCommitment:  sc,
 		pruningManager:   pm,
@@ -389,7 +389,7 @@ func (s *Store) writeSC(cs *corestore.Changeset) error {
 	}
 
 	var previousHeight, version uint64
-	if s.lastCommitInfo.GetVersion() == 0 && s.initialVersion > 1 {
+	if s.lastCommitInfo.GetVersion() == 0 && s.initialVersion > 0 {
 		// This case means that no commit has been made in the store, we
 		// start from initialVersion.
 		version = s.initialVersion
@@ -399,11 +399,16 @@ func (s *Store) writeSC(cs *corestore.Changeset) error {
 		// 1. There was already a previous commit in the store, in which case we
 		// 		increment the version from there.
 		// 2. There was no previous commit, and initial version was not set, in which
-		// 		case we start at version 1.
+		// 		case we start at version 0.
 		previousHeight = s.lastCommitInfo.GetVersion()
-		version = previousHeight + 1
+		if previousHeight == 0 {
+			version = previousHeight
+		} else {
+			version = previousHeight + 1
+		}
 	}
 
+	fmt.Println(version)
 	s.lastCommitInfo = s.stateCommitment.WorkingCommitInfo(version)
 
 	return nil

store/v2/root/store_test.go

@@ -251,7 +251,7 @@ func (s *RootStoreTestSuite) TestCommit() {
 	// ensure latest version is updated
 	lv, err = s.rootStore.GetLatestVersion()
 	s.Require().NoError(err)
-	s.Require().Equal(uint64(1), lv)
+	s.Require().Equal(uint64(0), lv)
 
 	// perform reads on the updated root store
 	_, ro, err := s.rootStore.StateLatest()