message: Allow for overwriting block entries in the storage.
diff: @@ -276,7 +276,7 @@ impl Storage {
  Ok(match req {
  StorageRequest::PutBlock { block, responder } => {
  let mut txn = self.env.begin_rw_txn()?;
  - let outcome = txn.put_value(self.block_db, block.hash(), &block, false)?;
  + let outcome = txn.put_value(self.block_db, block.hash(), &block, true)?;
  txn.commit()?;
  if outcome {
  