redo fixes for 1324

lib/synchronizer.py

@@ -99,13 +99,14 @@ class WalletSynchronizer():
         # Check that txids are unique
         hashes = set(map(lambda item: item['tx_hash'], result))
         if len(hashes) != len(result):
-            raise Exception("error: server history has non-unique txids: %s"
-                            % addr)
+            self.print_error("error: server history has non-unique txids: %s"% addr)
+            return
 
         # Check that the status corresponds to what was announced
         hist = map(lambda item: (item['tx_hash'], item['height']), result)
         if self.wallet.get_status(hist) != server_status:
-            raise Exception("error: status mismatch: %s" % addr)
+            self.print_error("error: status mismatch: %s" % addr)
+            return
 
         # Store received history
         self.wallet.receive_history_callback(addr, hist)