Fixed bug; moves stack cut too long on rebase

chess.py

@@ -199,7 +199,7 @@ class Game:
         """Shorten moves and history stacks if move is made
            while past game state is loaded into memory. Essentialy
            overrides future game states."""
-        self.moves = self.moves[:self.index+1]
+        self.moves = self.moves[:self.index]
         self.history = self.history[:self.index+1]
 
     def timetravel(self, i):
@@ -528,4 +528,11 @@ class Game:
         return True
 
 
-
+game = Game()
+while True:
+    i = input(">> ")
+    game.AN_move(i)
+    if i =="prev":
+        game.prev()
+    print(game)
+    print(game.index, len(game.history), len(game.moves))