test: Add missing sync_blocks to wallet_hd

Author: MarcoFalke

test/functional/wallet_hd.py

@@ -231,6 +231,7 @@ def run_test(self):
             txid = self.nodes[0].sendtoaddress(addr, 1)
             origin_rpc.sendrawtransaction(self.nodes[0].gettransaction(txid)['hex'])
             self.nodes[0].generate(1)
+            self.sync_blocks()
             origin_rpc.gettransaction(txid)
             assert_raises_rpc_error(-5, 'Invalid or non-wallet transaction id', restore_rpc.gettransaction, txid)
             out_of_kp_txid = txid
@@ -241,6 +242,7 @@ def run_test(self):
             txid = self.nodes[0].sendtoaddress(last_addr, 1)
             origin_rpc.sendrawtransaction(self.nodes[0].gettransaction(txid)['hex'])
             self.nodes[0].generate(1)
+            self.sync_blocks()
             origin_rpc.gettransaction(txid)
             restore_rpc.gettransaction(txid)
             assert_raises_rpc_error(-5, 'Invalid or non-wallet transaction id', restore_rpc.gettransaction, out_of_kp_txid)