chore: add changelog, delete commented out test lines

Author: kantai

CHANGELOG.md

@@ -13,6 +13,10 @@ and this project adheres to the versioning scheme outlined in the [README.md](RE
 
 - When a previous block commit is unable to be RBFed, the miner will now just wait for it to be confirmed instead of submitting a new block commit which breaks the miner's UTXO chain.
 
+### Fixed
+
+- Fixed tenure downloader logic on reward cycle boundaries (#6234).
+
 ## [3.1.0.0.13]
 
 ### Added

testnet/stacks-node/src/tests/signer/v0.rs

@@ -8462,18 +8462,12 @@ fn signer_multinode_rollover() {
     let new_reward_cycle = miners.signer_test.get_current_reward_cycle();
     assert_eq!(new_reward_cycle, reward_cycle.saturating_add(1));
 
-    //    miners.wait_for_chains(120);
-
     miners
         .mine_bitcoin_block_and_tenure_change_tx(&sortdb, TenureChangeCause::BlockFound, 120)
         .unwrap();
 
-    //miners.wait_for_chains(120);
-
     miners.send_and_mine_transfer_tx(60).unwrap();
-    //miners.wait_for_chains(120);
     miners.send_and_mine_transfer_tx(60).unwrap();
-    //miners.wait_for_chains(120);
     miners.send_and_mine_transfer_tx(60).unwrap();
     miners.wait_for_chains(120);