cryptonote_protocol_handler.inl: remove span read just now that failed to pass some basic tests

src/cryptonote_protocol/cryptonote_protocol_handler.inl

@@ -1008,6 +1008,7 @@ skip:
           if (blocks.empty())
           {
             MERROR("Next span has no blocks");
+            m_block_queue.remove_spans(span_connection_id, start_height);
             break;
           }
 
@@ -1015,6 +1016,7 @@ skip:
           if (!parse_and_validate_block_from_blob(blocks.front().block, new_block))
           {
             MERROR("Failed to parse block, but it should already have been parsed");
+            m_block_queue.remove_spans(span_connection_id, start_height);
             break;
           }
           bool parent_known = m_core.have_block(new_block.prev_id);
@@ -1031,6 +1033,7 @@ skip:
               // this can happen if a connection was sicced onto a late span, if it did not have those blocks,
               // since we don't know that at the sic time
               LOG_ERROR_CCONTEXT("Got block with unknown parent which was not requested - querying block hashes");
+              m_block_queue.remove_spans(span_connection_id, start_height);
               context.m_needed_objects.clear();
               context.m_last_response_height = 0;
               goto skip;