Need help with Mecha Munch Management Task 5

Exercism
1

I don’t understand what I’m doing wrong here. I followed all the instructions and my code does what it’s supposed to do. But based on the outputs I’m seeing form the test failure, they want me to do something else they didn’t specify?
Here’s the task instructions:
The app needs to send a given users cart to the store for fulfillment. However, the shoppers in the store need to know which store aisle the item can be found in and if the item needs refrigeration. So (rather arbitrarily) the “fulfillment cart” needs to be sorted in reverse alphabetical order with item quantities combined with location and refrigeration information.

Create the function send_to_store(<cart>, <aisle_mapping>) that takes a user shopping cart and a dictionary that has store aisle number and a True/False for refrigeration needed for each item. The function should return a combined “fulfillment cart” that has (quantity, aisle, and refrigeration) for each item the customer is ordering. Items should appear in reverse alphabetical order.

>>> send_to_store({'Banana': 3, 'Apple': 2, 'Orange': 1, 'Milk': 2},
                  {'Banana': ['Aisle 5', False], 'Apple': ['Aisle 4', False], 'Orange': ['Aisle 4', False], 'Milk': ['Aisle 2', True]})
{'Orange': [1, 'Aisle 4', False], 'Milk': [2, 'Aisle 2', True], 'Banana': [3, 'Aisle 5', False], 'Apple': [2, 'Aisle 4', False]}

**Here's my code:**
def send_to_store(cart, aisle_mapping):
    fulfillment_cart = {}
    for item in cart:
        aisle_mapping[item].insert(0, cart[item])
    for stuff, other in reversed(sorted(aisle_mapping.items())):
        fulfillment_cart.setdefault(stuff, other)
    return fulfillment_cart

Here’s the test failure:
AssertionError: Order[36 chars]lse]), (‘Milk’, [‘Aisle 2’, True]), (‘Banana’,[48 chars]e])]) != Order[36 chars]lse])]) : Called send_to_store({‘Orange’: 1}, {‘Banana’: [‘Aisle 5’, False], ‘Apple’: [‘Aisle 4’, False], ‘Orange’: [1, ‘Aisle 4’, False], ‘Milk’: [‘Aisle 2’, True]}). The function returned {‘Orange’: [1, ‘Aisle 4’, False], ‘Milk’: [‘Aisle 2’, True], ‘Banana’: [‘Aisle 5’, False], ‘Apple’: [‘Aisle 4’, False]}, but the tests expected: {‘Orange’: [1, ‘Aisle 4’, False]} as the fulfillment cart.

2

The items returned should be based on the items found in the cart. If the items is not in the cart, it should not be in the fulfillment cart.