fix(mining): make sure the age reset only happens when the previous b…

…lock was part of wit\2

node/src/actors/chain_manager/mod.rs

@@ -1030,7 +1030,9 @@ impl ChainManager {
                 let miner_pkh = block.block_header.proof.proof.pkh();
 
                 // Reset the coin age of the miner for all staked coins
-                let _ = stakes.reset_age(miner_pkh, Capability::Mining, current_epoch);
+                if get_protocol_version(Some(block_epoch)) == ProtocolVersion::V2_0 {
+                    let _ = stakes.reset_age(miner_pkh, Capability::Mining, current_epoch);
+                }
 
                 // Do not update reputation or stakes when consolidating genesis block
                 if block_hash != chain_info.consensus_constants.genesis_hash {