test: Require standard txs in regtest

test/functional/feature_bip68_sequence.py

@@ -29,7 +29,10 @@ NOT_FINAL_ERROR = "non-BIP68-final (code 64)"
 class BIP68Test(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 2
-        self.extra_args = [[], ["-acceptnonstdtxn=0"]]
+        self.extra_args = [
+            ["-acceptnonstdtxn=1"],
+            ["-acceptnonstdtxn=0"],
+        ]
 
     def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()