fix bugs: blockmeta changes into latest version

storage/src/lib.rs

@@ -212,11 +212,12 @@ pub enum StorageVersion {
     V3 = 3,
     V4 = 4,
     V5 = 5,
+    V6 = 6,
 }
 
 impl StorageVersion {
     pub fn current_version() -> Self {
-        Self::V5
+        Self::V6
     }
 
     pub fn get_column_family_names(&self) -> &'static [ColumnFamilyName] {
@@ -226,6 +227,7 @@ impl StorageVersion {
             Self::V3 => &VEC_PREFIX_NAME_V3,
             Self::V4 => &VEC_PREFIX_NAME_V4,
             Self::V5 => &VEC_PREFIX_NAME_V5,
+            Self::V6 => &VEC_PREFIX_NAME_V5,
         }
     }
 }

storage/src/upgrade.rs

@@ -240,6 +240,9 @@ impl DBUpgrade {
             (StorageVersion::V4, StorageVersion::V5) => {
                 Self::db_upgrade_v4_v5(instance)?;
             }
+            (StorageVersion::V5, StorageVersion::V6) => {
+                Self::db_upgrade_v5_v6(instance)?;
+            }
             _ => bail!(
                 "Can not upgrade db from {:?} to {:?}",
                 version_in_db,
@@ -338,6 +341,10 @@ impl DBUpgrade {
         }
         Ok(())
     }
+
+    fn db_upgrade_v5_v6(_instance: &mut StorageInstance) -> Result<()> {
+        Ok(())
+    }
 }
 
 fn upgrade_store<K, V1, V2, T1, T2>(old_store: T1, store: T2, batch_size: usize) -> Result<usize>

vm/types/src/block_metadata/legacy.rs

@@ -72,7 +72,7 @@ impl From<BlockMetadata> for super::BlockMetadata {
             number: value.number,
             chain_id: value.chain_id,
             parent_gas_used: value.parent_gas_used,
-            parents_hash: Some(vec![]),
+            parents_hash: None,
         }
     }
 }