test: Implicitly sync after generate*, unless opted out

test/functional/wallet_balance.py

@@ -265,7 +265,7 @@ class WalletTest(BitcoinTestFramework):
         self.nodes[0].invalidateblock(block_reorg)
         self.nodes[1].invalidateblock(block_reorg)
         assert_equal(self.nodes[0].getbalance(minconf=0), 0)  # wallet txs not in the mempool are untrusted
-        self.generatetoaddress(self.nodes[0], 1, ADDRESS_WATCHONLY)
+        self.generatetoaddress(self.nodes[0], 1, ADDRESS_WATCHONLY, sync_fun=self.no_op)
         assert_equal(self.nodes[0].getbalance(minconf=0), 0)  # wallet txs not in the mempool are untrusted
 
         # Now confirm tx_orig