revert my own suggestion

Author: kantai

testnet/stacks-node/src/nakamoto_node/relayer.rs

@@ -521,12 +521,29 @@ impl RelayerThread {
                 });
             }
 
+            let mining_pkh_opt = self.get_mining_key_pkh();
             // a sortition happened, but we didn't win.
-            debug!(
-                "Relayer: did not win sortition {}, so stopping tenure",
-                &sn.sortition
-            );
-            return Some(MinerDirective::StopTenure);
+            match Self::can_continue_tenure(
+                &self.sortdb,
+                &mut self.chainstate,
+                sn.consensus_hash,
+                mining_pkh_opt,
+            ) {
+                Ok(Some(_)) => {
+                    // we can continue our ongoing tenure, but we should give the new winning miner
+                    // a chance to send their BlockFound first.
+                    debug!("Relayer: Did not win sortition, but am mining the ongoing tenure. Allowing the new miner some time to come online before trying to continue.");
+                    self.tenure_extend_timeout = Some(Instant::now());
+                    return Some(MinerDirective::StopTenure);
+                }
+                Ok(None) => {
+                    return Some(MinerDirective::StopTenure);
+                }
+                Err(e) => {
+                    warn!("Relayer: failed to check to see if we can continue tenure: {e:?}");
+                    return Some(MinerDirective::StopTenure);
+                }
+            }
         }
 
         // no sortition happened.