test: Implicitly sync after generate*, unless opted out

test/functional/feature_signet.py

@@ -51,7 +51,7 @@ class SignetBasicTest(BitcoinTestFramework):
         assert_equal(mining_info['networkhashps'], Decimal('0'))
         assert_equal(mining_info['pooledtx'], 0)
 
-        self.generate(self.nodes[0], 1)
+        self.generate(self.nodes[0], 1, sync_fun=self.no_op)
 
         self.log.info("pregenerated signet blocks check")