qa: timelock coinbase transactions created in functional tests

test/functional/feature_block.py

@@ -831,6 +831,7 @@ class FullBlockTest(BitcoinTestFramework):
         self.log.info("Reject a block with a transaction with a duplicate hash of a previous transaction (BIP30)")
         self.move_tip(60)
         b61 = self.next_block(61)
+        b61.vtx[0].nLockTime = 0
         b61.vtx[0].vin[0].scriptSig = DUPLICATE_COINBASE_SCRIPT_SIG
         b61.vtx[0].rehash()
         b61 = self.update_block(61, [])
@@ -853,6 +854,7 @@ class FullBlockTest(BitcoinTestFramework):
         b_spend_dup_cb = self.update_block('spend_dup_cb', [tx])
 
         b_dup_2 = self.next_block('dup_2')
+        b_dup_2.vtx[0].nLockTime = 0
         b_dup_2.vtx[0].vin[0].scriptSig = DUPLICATE_COINBASE_SCRIPT_SIG
         b_dup_2.vtx[0].rehash()
         b_dup_2 = self.update_block('dup_2', [])