workaround for first_block metadata

Author: msbrogli

hathor/p2p/sync_v2/streamers.py

@@ -276,10 +276,11 @@ def send_next(self) -> None:
             self.sync_agent.send_transactions_end(StreamEnd.TX_NOT_CONFIRMED)
             return
 
-        # Check if tx is confirmed by `self.current_block`.
+        # Check if tx is confirmed by the `self.current_block` or any next block.
         assert cur_metadata.first_block is not None
         assert self.current_block is not None
-        if cur_metadata.first_block != self.current_block.hash:
+        first_block = self.tx_storage.get_transaction(cur_metadata.first_block)
+        if first_block.get_metadata().height < self.current_block.get_metadata().height:
             self.log.debug('skipping tx: out of current block')
             self.bfs.skip_neighbors(cur)
             self.schedule_if_needed()