1 files changed, 1 insertions, 1 deletions
diff --git a/main.py b/main.py
index db30be3..88fe85f 100755
--- a/main.py
+++ b/main.py
@@ -794,7 +794,7 @@ def main():
                     player_node.inventory[item].itemId, item, player_node.inventory[item].amount)
 
                 # Check the inventory state and the amount of money match the information saved.
-                test_node = player_node.inventory
+                test_node = player_node.inventory.copy()
                 for elem in sale_tree.root:
                     item_found = False
                     for item in test_node: