message: fix: use equal to compare BlockStatus
diff: @@ -1706,7 +1706,7 @@ impl ActiveChain {
  }
  pub fn unknown_block_status(&self, block_hash: &Byte32) -> bool {
  - self.get_block_status(block_hash) == BlockStatus::UNKNOWN
  + self.contains_block_status(block_hash, BlockStatus::UNKNOWN)
  }
  }
  