Update drop-off conditions in counters.py

The code for the drop-off condition within the Overcooked simulator's counters module has been updated. The updated condition now checks not only if the item can be combined or matches the dispensing item's name but also checks if the undo dispenser pickup flag is true.

overcooked_simulator/counters.py

@@ -441,7 +441,9 @@ class Dispenser(Counter):
             return self.occupied_by.combine(item)
 
     def can_drop_off(self, item: Item) -> bool:
-        return self.occupied_by.can_combine(item) or item.name == self.dispensing.name
+        return self.occupied_by.can_combine(item) or (
+            self.undo_dispenser_pickup and item.name == self.dispensing.name
+        )
 
     def __repr__(self):
         return f"{self.dispensing.name}Dispenser"